CN102393791A

CN102393791A - Device and method for realizing power supply control on hardware modules

Info

Publication number: CN102393791A
Application number: CN2011101889141A
Authority: CN
Inventors: 赵志宇; 段琳; 钱嘉林; 张颖; 李星爽
Original assignee: Hangzhou H3C Technologies Co Ltd
Current assignee: New H3C Information Technologies Co Ltd
Priority date: 2011-07-06
Filing date: 2011-07-06
Publication date: 2012-03-28
Anticipated expiration: 2031-07-06
Also published as: CN102393791B

Abstract

The invention discloses a device and method for realizing power supply control on hardware modules. According to the invention, a hot-pluggable pin of each module slot is expanded into at least two from one in the prior art, and the level state combination of all the hot-pluggable pins after expansion can show whether the module slots are inserted by the hardware modules, and also can show the needed quantity of inserted power units of the hardware modules. Therefore, by level state detection of all hot-pluggable pins when the hardware modules are in a passive state, the plugging state can be recognized and simultaneously the needed quantity of the power units can be acquired in a non-bus transmission manner. By utilizing the device and the method, the design complexity level of the hardware modules and the module slots can be reduced, the needed time for power supply control can be shortened, and various hardware modules are easily compatible. In addition, according to the invention, a CPU (Central Processing Unit) is not required for participating in power supply control necessarily, so that the load of the CPU can be reduced in need.

Description

Be used for hardware module is realized the device and method of power supply control

Technical field

The present invention relates to the control technology of supplying power, particularly a kind of device and a kind of method that is used for hardware module is realized power supply control that is used for hardware module is realized power supply control.

Background technology

The hardware modularity design is a kind of basic design of electronic equipment, is common in personal computer, server and various network communication equipment.

Router in the network communication equipment is the typical case that hardware modularity is used, and present most routers all are modular routers.So-called modular router mainly is meant, this router itself only provides basic fixed interface (main flow is an Ethernet interface at present), if this router needs other interface types and interface expanded function then can be this configuration of routers corresponding hardware module.

As shown in Figure 1, existing modular router 100 can provide plurality of modules slot 10, all has the necessary hardware pin in each module slot 10; And each hardware module 20 also all has with module slot 10 corresponding hardware pins, and can be inserted into arbitrarily in the module slot 10.Generally speaking, the hardware pin of module slot 10 is the form of contact pin, and hardware module 20 corresponding hardware pins then are the form of jack.

The concrete definition of above-mentioned hardware pin comprises data bus (the for example pci bus of high speed data transfer, PCI-E bus, 100M/1000M/10GE industry ethernet), control bus (for example the Local Bus bus and the I of control information transmission ²The TDM bus of C bus and transmit clock signal), power pin, ground pin; In addition, a principal feature that designs owing to hardware modularity is the support hot plug, is modular router 100 general all hot plugs of support hardware module 20, therefore, also comprises the hot plug pin that is used to discern the plug state in the hardware pin definitions.

The concrete mode of utilizing hot plug pin identification plug state is please in conjunction with Fig. 2:

Has the hot plug pin P1 that draws on a ground pin P0 and the velamen to high level in each hardware slot 10 of modular router 100; 20 of hardware modules have pin V1 ' and the pin P0 ' of corresponding ground pin P0 and the pin P1 ' of corresponding hot plug pin P1 of corresponding power pin V1 respectively, and the pin P0 ' of hardware module 20 and P1 ' mutual conduction;

After in the hardware module 20 insert module slots 10; The pin P0 ' of hardware module 20 contacts with the ground pin P0 of module slot 10, the pin P1 ' of hardware module 20 contacts with module slot 10 interior hot plug pin P1; At this moment; The pin P0 ' of the mutual conduction of hardware module 20 and P1 ' meeting are with the ground pin P0 of hot plug pin P1 conducting to the module slot 10 of module slot 10; Make the level state of hot plug pin P1 of module slot 10 become low level by high level; Logic chip 12 (for example CPLD or FPGA) in the modular router 10 is after detecting hot plug pin P1 and becoming low level by high level, and can identify has hardware module 20 to insert in the module slot 10;

After the hardware module of inserting in the module slot 10 20 was extracted, hot plug pin P1 recovered high level again, and at this moment, logic chip 12 can identify the hardware modules 20 that not have insertion in the module slot 10 when detecting hot plug pin P1 and be high level.

In addition; After in identifying module slot 10, having the hardware module of insertion 20 to insert or extract; Logic chip 12 also need report interruption to CPU 13; Make CPU 13 in the process of Interrupt Process, know the plug state in the

module slot

10, and 12 pairs of logic chips of the indication module slot 10 of inserting hardware module 20 powers on or hardware module 20 extracted after module slot 10 outages.

Generally; Available horsepower unit's sum of power supply 11 is limited in the modular router 100; So; For module slot 10 and the situation that hardware module 20 quantity are more and hardware module 20 power consumptions are bigger inserted, limited available horsepower unit's sum can can't satisfy the hardware module 20 of all insertions, just need this moment CPU 13 in the process of Interrupt Process to the control of supplying power of the module slot 10 of inserting hardware module 20.

Still combine Fig. 2; So-called power supply control is meant; CPU 13 does not trigger earlier logic chip 12 with power supply 11 and the new power pin V1 that inserts the module slot 10 of hardware module 20 in the process of Interrupt Process, then judges whether current power unit volume residual satisfies the power unit quantity required of the new hardware module of inserting 20.If satisfy; Then CPU 13 triggers logic chip 12 with power supply 11 and new power pin V1 conducting of inserting the module slot 10 at hardware module 20 places; Make the power supply 11 can be through powering on for hardware module 20 with the hardware pin of the corresponding contact of power pin V1 (among Fig. 2 sign) in power pin V1 and the hardware module 20, CPU 13 withdraws from Interrupt Process then; Otherwise CPU13 directly withdraws from Interrupt Process, makes the power supply 11 and the power pin V1 of the module slot 10 at the new hardware module of inserting 20 places remain on off-state, and the promptly new hardware module of inserting 20 can not powered on.

Wherein, CPU 13 can be from a slice nonvolatile memory 21 of the hardware module 20 of new insertion (E for example ²PROM) obtain the power unit quantity required that it judges this required hardware module 20 in; But because new hardware module 20 these fashion of inserting do not power on; Therefore, an accessory power supply 14 need be set powers on for nonvolatile memory 21 parts of the new hardware module of inserting 20 separately.

Specifically, module slot 10 has local power pin V2 and I ²The C bus pin, this local power pin V2 and accessory power supply 14 keep conducting state, I always ²The C bus pin is then passed through I ²The C bus links to each other with CPU 13; The nonvolatile memory 21 of the hardware module of inserting 20 has and local power pin V2 and I ²The hardware pin of the corresponding and contact of C bus pin makes that nonvolatile memory 21 can be powered on by accessory power supply 14, the power unit quantity required in the nonvolatile memory 21 can pass through I by CPU 13 ²The C bus reads.

Though can realize power supply control with upper type, realize owing to this mode must be under the state of source and based on bus transfer in hardware module 20, thereby have following defective to hardware module 20:

1, requires hardware module 20 must have the circuit that is exclusively used in to nonvolatile memory 21 local powers, thereby cause the complex design of hardware module 20 (especially undersized hardware module 20);

2, module slot 10 must provide the duplicate supply of power supply 11 and accessory power supply 14, causes the complex design of module slot 10;

3, need through the slower I of transfer rate ²The power unit quantity required that the C bus is obtained causes the processing time to increase;

4, can't compatibility not reserving can be independently-powered and have an I ²The hardware module of the nonvolatile memory 21 of C EBI.

In addition, also must participate in power supply control by CPU 13 with upper type, this has just increased the burden of CPU 13 to a certain extent.

Summary of the invention

In view of this, the invention provides a kind of device and a kind of method that is used for hardware module is realized power supply control that is used for hardware module is realized power supply control.

A kind of device that is used for hardware module is realized power supply control provided by the invention comprises module slot and logic chip and power supply, each module slot have power pin, ground pin and by on draw hot plug pin into high level state;

The hot plug pin of each module slot is at least two; All hot plug pins of each module slot can be inserted into this module slot hardware module conducting selectively to this module slot ground pin and become low level state, with the level state combination of any non-overall height of the power unit quantity required that forms this hardware module of expression;

Logic chip is all hot plug pins that detect module slot are become any non-overall height level state combination by the combination of overall height level state after; Identify corresponding power unit quantity required according to the non-overall height level state combination of detected this kind; If current power unit volume residual is more than or equal to the power unit quantity required that identifies, then with the power pin and the power turn-on of this module slot; Otherwise, keep the power pin of this module slot and the disconnection of power supply;

Logic chip at all hot plug pins that detect module slot by any after combination of non-overall height level state combination becoming overall height level state, with the power pin and the power supply disconnection of this module slot.

Logic chip comprises:

The pin senses logical circuit detects the level state of all hot plug pins of each module slot;

Quantity recognition logic circuit; All hot plug pins that module slot is arranged are become any non-overall height level state combination by the combination of overall height level state after, the non-overall height level state combination of detected this module slot is identified as the power unit quantity required of correspondence;

The control execution logic circuit; All hot plug pins that module slot is arranged are become any non-overall height level state combination by the combination of overall height level state after; If current power unit volume residual is more than or equal to the power unit quantity required that identifies; Then with the power pin and the power turn-on of this module slot, otherwise, keep the power pin of this module slot and the disconnection of power supply; At all hot plug pins that module slot is arranged by any after combination of non-overall height level state combination becoming overall height level state, with the power pin and the power supply disconnection of this module slot.

Whether logic chip is further carried out current power unit volume residual more than or equal to the judgement of the power unit quantity required that identifies, the also further maintenance of carrying out current power unit volume residual.

This device further comprises CPU;

Logic chip further obtains the initial value that power unit that CPU issues can be set to the power unit volume residual with sum and power unit with sum;

Logic chip further reports interruption, is inserted with the hardware module that has powered in this module slot of notice CPU to CPU after with the power pin of arbitrary module slot and power turn-on;

Logic chip further reports interruption, is de-energized and extracts to notify the hardware module that has powered in this module slot of CPU to CPU in power pin and power supply disconnection back with arbitrary module slot.

Logic chip comprises:

The control execution logic circuit is obtained the initial value that power unit that CPU issues can be set to the power unit volume residual with sum and power unit with sum, and, safeguard that power unit can use sum; All hot plug pins that module slot is arranged are become any non-overall height level state combination by the combination of overall height level state after; If judge current power unit volume residual more than or equal to the power unit quantity required that identifies; Then with the power pin and the power turn-on of this module slot and upgrade power unit and can use sum; Otherwise, keep the power pin of this module slot and the disconnection of power supply; At all hot plug pins that module slot is arranged by any after combination of non-overall height level state combination becoming overall height level state, with the power pin and the power supply disconnection of this module slot;

Interruption reports logical circuit, is switched on and is disconnected the back at the power pin that module slot is arranged and power supply and report interruption to CPU.

Logic chip further comprises can be by the access interface logical circuit of CPU visit;

The access interface logical circuit is safeguarded to be had and can be used the power unit of sum can use total digital section by CPU Writing power unit;

And the access interface logical circuit also safeguards that to each module slot plug attribute field, interruption status field and power-up state field are arranged respectively, wherein:

The plug attribute field can be set to represent whether to be inserted with in the corresponding module slot mark of hardware module by the pin senses logical circuit, knows in the corresponding module slot whether be inserted with hardware module for CPU;

But power-up state field Be Controlled execution logic circuit is set to represent the power pin of corresponding module slot and the mark of power turn-on or disconnection, knows for CPU whether corresponding module slot powers on to hardware module;

The interruption status field can be set to represent the mark that corresponding module slot has interruption to handle by the pin senses logical circuit, interrupts reporting logical circuit to be switched on and to be disconnected at power pin that module slot is arranged and power supply then reporting interruption according to this mark to CPU to trigger;

The interruption status field also can be set to represent that corresponding module slot do not have the mark that interruption will be handled by CPU, so that interrupt reporting logical circuit to stop to report interruption to CPU.

Whether this device further comprises CPU, and carried out current power unit volume residual more than or equal to the judgement of the power unit quantity required that identifies, the also further maintenance of carrying out current power unit volume residual by CPU.

Further non-overall height level state combination becoming overall height level state combination back reports interruption, is inserted with the hardware module insertion in this module slot of CPU to notify to CPU logic chip by any at all hot plug pins that detect module slot;

CPU further obtains the power unit quantity required that identifies from logic chip;

Logic chip further CPU judge the current power unit volume residual of expression that arbitrary module slot issues more than or equal to the power unit quantity required that identifies after, receive expression that CPU issues with the power pin of respective modules slot and the instruction of power turn-on and according to this instruction execution with the power pin of this module slot and the operation of power turn-on;

Logic chip comprises:

The control execution logic circuit; All hot plug pins that module slot is arranged are become any non-overall height level state combination by the combination of overall height level state after; If receive expression that CPU issues with the power pin of respective modules slot and the instruction of power turn-on, then carry out the power pin of this module slot and the operation of power turn-on according to this instruction; At all hot plug pins that module slot is arranged by any after combination of non-overall height level state combination becoming overall height level state, with the power pin and the power supply disconnection of this module slot;

Interruption reports logical circuit; All hot plug pins that module slot is arranged are become any non-overall height level state combination back and having the power pin of module slot to break off with power supply by overall height level state combination after, report to the interruption of CPU to report interruption to CPU after being triggered.

The access interface logical circuit safeguards that to each module slot plug attribute field, interruption status field, power unit demand field and power-up state field are arranged respectively, wherein:

The plug attribute field can be set to represent whether to be inserted with in the corresponding module slot mark of hardware module by the pin senses logical circuit, knows whether have hardware module to insert in the corresponding module slot for CPU;

The power unit quantity required that power unit demand field can be write corresponding module slot by quantity recognition logic circuit obtains for CPU;

The power-up state field can be set to represent the power pin of corresponding module slot and the mark of power turn-on by CPU, to realize that CPU issues expression with the power pin of respective modules slot and the instruction of power turn-on;

But power-up state field also Be Controlled execution logic circuit is set to represent the power pin of corresponding module slot and the mark that power supply breaks off, and knows that for CPU the hardware module that has powered in this module slot is de-energized and extracts;

The interruption status field can be set to represent the mark that corresponding module slot has interruption to handle by the pin senses logical circuit, interrupts reporting logical circuit to be become any non-overall height level state combination back and after power pin that module slot is arranged and power supply break off, reported interruption to CPU by the combination of overall height level state at all hot plug pins that module slot is arranged to trigger;

Whether this device further comprises CPU, select a ground by logic chip and CPU and carry out current power unit volume residual more than or equal to the judgement of the power unit quantity required that identifies, the also further maintenance of carrying out current power unit volume residual.

CPU further issues to logic chip and representes that said judgement and said maintenance are by logic chip execution or the notice of being carried out by CPU.

To the situation of being carried out said judgement and said maintenance by logic chip, logic chip further obtains the initial value that power unit that CPU issues can be set to the power unit volume residual with sum and power unit with sum; Logic chip further reports interruption, is inserted with the hardware module that has powered in this module slot of notice CPU to CPU after with the power pin of arbitrary module slot and power turn-on; Logic chip further reports interruption, is de-energized and extracts to notify the hardware module that has powered in this module slot of CPU to CPU in power pin and power supply disconnection back with arbitrary module slot;

To the situation of being carried out said judgement and said maintenance by CPU, further non-overall height level state combination becoming overall height level state combination back reports interruption, is inserted with the hardware module insertion in this module slot of CPU to notify to CPU logic chip by any at all hot plug pins that detect module slot; CPU further obtains the power unit quantity required that identifies, carries out said judgement and said maintenance for CPU from logic chip; Logic chip further CPU judge the current power unit volume residual of expression that arbitrary module slot issues more than or equal to the power unit quantity required that identifies after, receive expression that CPU issues with the power pin of respective modules slot and the instruction of power turn-on and according to this instruction execution with the power pin of this module slot and the operation of power turn-on; Logic chip further reports interruption, is de-energized and extracts to notify the hardware module that has powered in this module slot of CPU to CPU in power pin and power supply disconnection back with arbitrary module slot.

Logic chip comprises:

Control execution logic circuit, the said judgement of expression and the said maintenance that issue according to CPU are that whether decision is responsible for said judgement and the said maintenance by the logic chip execution by logic chip execution or the notice of being carried out by CPU;

To the situation of carrying out said judgement and said maintenance by logic chip; The control execution logic circuit is obtained the power unit that CPU issues can be set to the initial value of power unit volume residual with sum with sum and power unit, and carries out the said maintenance of being responsible for by logic chip; All hot plug pins that module slot is arranged are become any non-overall height level state combination by the combination of overall height level state after; If judge current power unit volume residual more than or equal to the power unit quantity required that identifies; Then with the power pin and the power turn-on of this module slot; Otherwise, keep the power pin of this module slot and the disconnection of power supply; At all hot plug pins that module slot is arranged by any after combination of non-overall height level state combination becoming overall height level state, with the power pin and the power supply disconnection of this module slot;

To the situation of carrying out said judgement and said maintenance by CPU; The control execution logic circuit is all hot plug pins that module slot is arranged are become any non-overall height level state combination by the combination of overall height level state after; If receive expression that CPU issues with the power pin of respective modules slot and the instruction of power turn-on; Then carry out the power pin of this module slot and the operation of power turn-on according to this instruction, otherwise, keep the power pin of this module slot and the disconnection of power supply; At all hot plug pins that module slot is arranged by any after combination of non-overall height level state combination becoming overall height level state, with the power pin and the power supply disconnection of this module slot;

Interruption reports logical circuit, to the situation of being carried out said judgement and said maintenance by logic chip, is switched on and is disconnected the back at the power pin that module slot is arranged and power supply and report interruption to CPU; To the situation of carrying out said judgement and said maintenance by CPU, become any non-overall height level state combination back and report interruption to CPU by the combination of overall height level state in power pin that module slot is arranged and power supply disconnection back at all hot plug pins that module slot is arranged.

The access interface logical circuit safeguards that having control to safeguard selects field and power unit can use total digital section, wherein:

Control safeguard to select field to be set to represent carry out the mark of said judgement and said maintenance by logic chip or by CPU by CPU, is the notice of being carried out or being carried out by CPU by the control execution logic circuit to realize that CPU issues the said judgement of expression and said maintenance;

Power unit can use total digital section can be used sum by CPU Writing power unit to the situation of being carried out said judgement and said maintenance by logic chip, to realize that CPU issues power unit and can use sum;

And the access interface logical circuit also safeguards that to each module slot plug attribute field, interruption status field, power unit demand field and power-up state field are arranged respectively, wherein:

The plug attribute field can be set to represent that the mark that hardware module is inserted or hardware module is pulled out is arranged in the corresponding module slot by the pin senses logical circuit, knows in the corresponding module slot whether be inserted with hardware module for CPU;

Power unit demand field can be write the power unit quantity required of corresponding module slot by quantity recognition logic circuit to the situation of being carried out said judgement and said maintenance by CPU, obtains for CPU;

The power-up state field can be set to represent the power pin and the mark of power turn-on or disconnection of corresponding module slot to the situation Be Controlled execution logic circuit of carrying out said judgement and said maintenance by logic chip, for CPU know that hardware module in the corresponding module slot has powered on or the module slot of correspondence in the hardware module that powered on be de-energized and extract; The power-up state field can be set to represent that the power pin of corresponding module slot is set to represent the power pin of corresponding module slot and the mark that power supply breaks off with the mark or the Be Controlled execution logic circuit of power turn-on by CPU to the situation that CPU carries out said judgement and said maintenance, to realize that CPU issues expression the power pin of respective modules slot is known that with the instruction or the confession CPU of power turn-on the hardware module that has powered in the corresponding module slot is de-energized and extracts;

The interruption status field can be set to represent the mark that corresponding module slot has interruption to handle by the pin senses logical circuit; Report interruption according to this mark to CPU trigger to interrupt reporting logical circuit to be switched on and to be disconnected the back at power pin that module slot is arranged and power supply to the situation of being carried out said judgement and said maintenance by logic chip, the situation of also carrying out said judgement and said maintenance to CPU triggers interrupts reporting logical circuit to be become any non-overall height level state combination back by the combination of overall height level state and after the power pin that module slot is arranged and power supply disconnection, report interruption to CPU at all hot plug pins that module slot is arranged;

Control safeguards that the initial default state of selecting field is for representing to be carried out by the control execution logic circuit mark of said judgement and said maintenance;

The initial default state of plug attribute field is not for there being the mark of the hardware module of inserting in the corresponding module slot of expression;

The initial default state of interruption status field does not have the mark that interruption will be handled for the corresponding module slot of expression;

The initial default state of power-up state field is the power pin of the corresponding module slot of expression and the mark of power supply disconnection.

A kind of method that is used for hardware module is realized power supply control provided by the invention; Be applied to comprise in the electronic equipment of a plurality of modules slot and a power supply, each module slot have power pin, ground pin and by on draw hot plug pin into high level state;

This method comprises: the hot plug pin of each module slot all is set at least two, make all hot plug pins of each module slot can be inserted into this module slot hardware module conducting selectively to this module slot ground pin and become low level state, with any non-overall height level state combination of the power unit quantity required that forms this hardware module of expression;

This method also comprises:

All hot plug pins that detect module slot are become any non-overall height level state combination by the combination of overall height level state after; Identify corresponding power unit quantity required according to the non-overall height level state combination of detected this kind; If current power unit volume residual is more than or equal to the power unit quantity required that identifies, then with the power pin and the power turn-on of this module slot; Otherwise, keep the power pin of this module slot and the disconnection of power supply;

At all hot plug pins that detect module slot by any after combination of non-overall height level state combination becoming overall height level state, with the power pin and the power supply disconnection of this module slot.

Further comprise CPU in the said electronic equipment;

Whether this method is outside or further carried out current power unit volume residual more than or equal to the judgement of the power unit quantity required that identifies, and further carried out the maintenance to current power unit volume residual by CPU at CPU.

This method further comprises: reception CPU issues the said judgement of expression and said maintenance is in outside execution of CPU or the notice of being carried out by CPU.

Be maintained in the outside situation about carrying out of CPU to said judgement and said, this method further comprises: obtain the initial value that power unit that CPU issues can be set to the power unit volume residual with sum and power unit with sum; This method further reports interruption, is inserted with the hardware module that has powered in this module slot of notice CPU to CPU after with the power pin of arbitrary module slot and power turn-on; This method further reports interruption, is de-energized and extracts to notify the hardware module that has powered in this module slot of CPU to CPU in power pin and power supply disconnection back with arbitrary module slot;

To the situation of being carried out said judgement and said maintenance by CPU, this method further comprises: non-overall height level state combination becoming overall height level state combination back reports interruption, is inserted with the hardware module insertion in this module slot of CPU to notify to CPU by any at all hot plug pins that detect module slot; The power unit quantity required that this method further makes CPU obtain to identify, carry out said judgement and said maintenance for CPU; This method further CPU judge the current power unit volume residual of expression that arbitrary module slot issues more than or equal to the power unit quantity required that identifies after, receive expression that CPU issues with the power pin of respective modules slot and the instruction of power turn-on and according to this instruction execution with the power pin of this module slot and the operation of power turn-on; This method further reports interruption, is de-energized and extracts to notify the hardware module that has powered in this module slot of CPU to CPU in power pin and power supply disconnection back with arbitrary module slot.

Visible by technique scheme; The present invention expands at least two with the hot plug pin of each module slot by one of the prior art; Whether the combination of the level state of all the hot plug pins after the expansion have in can the representation module slot the plug state that hardware module inserts, the power unit quantity required of the hardware module that can also represent to insert.Therefore, detect, can when identifying the plug state, the mode with non-bus transfer get access to the power unit quantity required through level state when hardware module is in passive states to all hot plug pins.Thereby, can reduce complex design degree, the shortening power supply of hardware module and module slot and control the required time and be easy to compatible various hardware module.

In addition, among the present invention and do not require that CPU must participate in power supply control, thus offloading the CPU when needed.

Description of drawings

Fig. 1 is the synoptic diagram of the module slot and the hardware module of existing modular router;

Fig. 2 is for being used for hardware module is realized the partial interior structural representation of power supply control in the existing modular router;

Fig. 3 is for being used for hardware module is realized the structure drawing of device of power supply control in the embodiment of the invention;

Fig. 4 is for can make hardware module be applicable to the synoptic diagram of a kind of breakout box of device as shown in Figure 3;

Fig. 5 a to Fig. 5 g is the mount structure instance graph that is applicable to the hardware module of device as shown in Figure 3;

Fig. 6 is the synoptic diagram of a kind of preferred logic structure of the logic chip in the device as shown in Figure 3;

Fig. 7 is the synoptic diagram of employed various visit fields in the logical organization as shown in Figure 6;

Fig. 8 is for being used for hardware module is realized the method flow diagram of power supply control in the embodiment of the invention.

Embodiment

For making the object of the invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, to further explain of the present invention.

Fig. 3 is for being used for hardware module is realized the structure drawing of device of power supply control in the embodiment of the invention.As shown in Figure 3; Be used in the present embodiment hardware module is realized that the device 300 of power supply control comprises plurality of modules slot 30 (Fig. 3 only shows) and a logic chip 32 and a power supply 31, each module slot 30 have power pin V1, ground pin P0 and by on draw hot plug pin P1～P3 into high level state.

Wherein, in each module slot 30, extending to 3 hot plug pin P1～P3 in the present embodiment is to be different from the situation that 1 hot plug pin P1 is only arranged in the prior art.

During concrete the realization, the idle pin that can utilize module slot 30 as newly-increased hot plug pin P2 and P3, also can 2 new pins that are used as hot plug pin P2 and P3 of extra increase.

Correspondingly, hardware module 40 also should be set up and hot plug pin P2 and P3 corresponding hardware pin P2 ' and P3 ' except having corresponding hardware pin P0 ' and P1 '.

During concrete the realization; As long as guarantee that hardware pin P0 ' can contact with ground pin P0 in hardware module 40 insert module slots 30 back and hardware pin P1 '～P3 ' can be behind hardware module 40 insert module slots 30 contacts with mode one to one with hot plug pin P1～P3 respectively; Both can utilize the idle pin of hardware module 40 to be used as hardware pin P2 ' and P3 ', also can 2 of extra increases to be used as hardware pin P2 ' and P3 '; Even if the situation that hardware module 40 does not support to set up hardware pin P2 ' and P3 ' occurs, also can utilize extra breakout box 50 as shown in Figure 4 to realize the grafting of hardware module 40 and module slot 30 but need the hardware pin P0 ' and the P1 ' of hardware module 40 original mutual conduction be broken off with hardware pin P2 ' and P3 '.

In addition; Among hardware pin the P1 '～P3 ' of hardware module 40 (or breakout box 50) at least 1 is connected to hardware pin P0 ' and remaining suspends, and between hardware pin P1 '～P3 ' and hardware pin P0 ', is represented by dotted lines all possible 7 kinds of situation of then having enumerated among Fig. 5 a to Fig. 5 g in order to contain all possible 7 kinds of situation among Fig. 3 and Fig. 4.

Based on said structure:

When each module slot 30 is inserted in no hardware module 40, its be expanded be 3 hot plug pin P1～P3 all by on draw the level state combination that for high level state, promptly forms specific overall height; Like this, the combination of the level state of the overall height of 3 hot plug pin P1～P3 can correspond to 3 bits and be the binary number " 111 " of " 1 " entirely, is used for the state of extracting that does not have hardware module 40 to insert in the representation module slot 30;

Each module slot 30 is after having hardware module 40 to insert; Its ground pin P0 contacts with the hardware pin P0 ' of hardware module 40, it is expanded is that hot plug pin P1～P3 of 3 contacts with hardware pin the P1 '～P3 ' of hardware module 40 respectively correspondingly; At this moment; According to hardware pin P1 '～P3 ' respectively with hardware pin P0 ' between respectively arbitrary being connected and the open combinations state among corresponding diagram 5a to Fig. 5 g, hot plug pin P1～P3 can be inserted into this module slot 30 hardware module 40 conducting selectively to this module slot 30 ground pin P0 and become low level state, promptly form a kind of in the level state combination of 7 kinds of corresponding non-overall heights that possibly occur; Like this; The combination of the level state of the non-overall height of 3 hot plug pin P1～P3 can correspond to 3 bits and not be one in the binary number " 110 " of " 1 ", " 101 ", " 100 ", " 011 ", " 010 ", " 001 ", " 000 " entirely; These 3 bits are entirely for the binary number of " 1 " has in representation module slot 30 the insertion state that hardware module 40 inserts, 7 kinds of power unit quantity requireds that the hardware module 40 that can also represent to insert possibly occur.

Enumerated the implication that the corresponding 3 bit binary number institute of various level combination of 3 hot plug pin P1～P3 representes respectively in the table 1.

P3	P2	P1	Expression implication (is that 10W is an example with each power cell)
				1	1	1	There is not hardware module in the module slot
1	1	0	Hardware module is arranged in the module slot, and need 2 power cell 0W-20W
				1	0	1	Hardware module is arranged in the module slot, and need 3 power cell 20W-30W
1	0	0	Hardware module is arranged in the module slot, and need 4 power cell 30W-40W
				0	1	1	Hardware module is arranged in the module slot, and need 5 power cell 40W-50W
0	1	0	Hardware module is arranged in the module slot, and need 6 power cell 50W-60W
				0	0	1	Hardware module is arranged in the module slot, and need 7 power cell 60W-70W
0	0	0	Hardware module is arranged in the module slot, and need 8 power cell 70W-80W

Table 1

Based on aforesaid way:

Logic chip 32 is the hot plug pin P1～P3 that detects module slot 30 is become in all the other the 7 kinds non-overall height level states combinations any by overall height level state combination after; Identify corresponding power unit quantity required according to the non-overall height level state combination of detected this kind; If current power unit volume residual (being power unit quantity required poor that power unit can deduct all hardware modules that are in power-up state 40 with sum) is more than or equal to the power unit quantity required that identifies, then with the power pin V1 and power supply 31 conductings of this module slot 30; Otherwise, keep the disconnection of power pin V1 and the power supply 31 of this module slot 30, until current power unit volume residual more than or equal to the power unit quantity required that identifies from this module slot 30;

Logic chip 32 is at the hot plug pin P1～P3 that detects module slot 30 after any in the combination of non-overall height level state becomes the combination of overall height level state by 7 kinds, with the power pin V1 and power supply 31 disconnections of this module slot 30.

It is thus clear that; When the hardware module 40 of logic chip 32 in insert module slot 30 is in passive states, can be through the level state of 3 hot plug pin P1～P3 being detected the power unit quantity required that identify the plug state simultaneously and get access to hardware module 40 with the mode of non-bus transfer.Thereby, both need not hardware module 40 and had independently-powered circuit, also need not module slot 30 and duplicate supply is provided, also need not through I ²C bus transmitted power unit quantity required, thus can reduce hardware module 40 and module slot 30 the complex design degree, and shorten the required time of power supply control.

And; Utilize the level state of 3 hot plug pin P1～P3 to represent the mode of power unit quantity required; Only need be according to simply adjusting like the hardware pin of table 1 pair various hardware modules or directly set up breakout box as shown in Figure 4 50, thereby also be easy to compatible various types of hardware module.

Still, be used in the present embodiment hardware module is realized that the device 300 of power supply control also comprises CPU 33 referring to Fig. 3.But, in the present embodiment and do not require that CPU 33 must participate in power supply control.Promptly; To the mentioned current power unit volume residual of preamble whether more than or equal to the judgement of two kinds of situation of the power unit quantity required that identifies; And to the safeguarding of the mentioned current power unit volume residual of preamble (being about to the power unit volume residual deducts the power unit quantity required of the hardware module 40 that newly powers on and is added to the power unit volume residual at the power unit quantity required of the hardware module 40 of new outage); Both can be responsible for carrying out, also can be responsible for execution, rather than must carry out by CPU by CPU 33 by logic chip 32.

Above-mentioned judgement and safeguard can be immobilize by logic chip 32 or carry out by CPU 22 with immobilizing; Perhaps, also can be that above-mentioned judgement of expression and the above-mentioned maintenance that issues to logic chip 32 according to CPU 33 is to be carried out or by the notice that CPU 33 carries out, carried out and dynamically make logic chip 32 and CPU 33 select a ground by logic chip 32.For the situation of dynamically selecting,, then give tacit consent to by logic chip 32 and be responsible for execution if CPU 33 does not issue this notice.

But no matter whether above-mentioned judgement and above-mentioned maintenance need CPU 33 to carry out, and all can not occur CPU 33 in the present embodiment and pass through I ²The C bus is obtained the situation of the power unit quantity required of hardware module 40.

Specifically:

To the situation of being responsible for carrying out above-mentioned judgements and above-mentioned maintenance by logic chip 32, logic chip 32 further (for example when device 300 initialization) obtains the initial value that power unit that CPU 33 issues can be set to the power unit volume residual with sum and power unit with sum; Logic chip 32 further reports interruption, is inserted with the hardware module 40 that has powered in notice CPU 33 these module slots 30 to CPU 33 after with the power pin V1 of arbitrary module slot 30 and power supply 31 conductings; Logic chip 32 further reports interruption, is de-energized and extracts to notify the hardware module 40 that has powered in CPU 33 these module slots 30 to CPU33 in power pin V1 and power supply 31 disconnection backs with arbitrary module slot 30;

To the situation by CPU 33 above-mentioned judgements of execution and above-mentioned maintenance, logic chip 32 need non-overall height level state combination becoming overall height level state combination back reports interruption, is inserted with hardware module 40 insertions in CPU 33 these module slots 30 to notify to CPU 33 by any at all hot plug pin P1～P3 that detect module slot 30; CPU 33 further obtains power unit quantity required that logic chip 32 identifies, carries out above-mentioned judgement and above-mentioned maintenances for CPU 33; Logic chip 32 is further after current power unit volume residual that CPU 33 judges arbitrary module slot 30 is more than or equal to the power unit quantity required that identifies; Receive expression that CPU 33 issues with the instruction of the power pin V1 of respective modules slot 30 and power supply 31 conductings and according to power pin V1 and power supply 31 conductings of this instruction with respective modules slot 30; If do not receive this instruction, then logic chip 32 can keep the power pin V1 of respective modules slot 30 and power supply 31 to break off.

Fig. 6 is the synoptic diagram of a kind of preferred logic structure of the logic chip in the device as shown in Figure 3.As shown in Figure 6; Present embodiment also provides a kind of preferred logical organization to the logic chip 32 in the device 300 as shown in Figure 3, and this logical organization comprises: pin senses logical circuit 321, quantity recognition logic circuit 322, control execution logic circuit 323, interruption report logical circuit 324, access interface logical circuit 325.

Pin senses logical circuit 321 detects the level state of the hot plug pin P1～P3 of each module slot 30.

For the situation of being carried out aforementioned judgements and aforementioned maintenance by logic chip 32: pin senses logical circuit 321 is hot plug pin P1～P3 that module slot 30 is arranged is become any non-overall height level state combination by the combination of overall height level state after, and notice quantity recognition logic circuit 322 and control execution logic circuit 323 and access interface logical circuit 325 also trigger to access interface logical circuit 325 and to interrupt reporting logical circuit 324 to report to the interruption of CPU 33; After the combination of non-overall height level state combination becoming overall height level state, notify control execution logic circuit 323 to trigger and interrupt reporting logical circuit 324 to report by any at the hot plug pin P1～P3 that detects module slot 30 to the interruption of CPU 33 with access interface logical circuit 325 and to access interface logical circuit 325;

For the situation of being carried out aforementioned judgements and aforementioned maintenance by CPU 33: pin senses logical circuit 321 is only notified quantity recognition logic circuit 322 to trigger with access interface logical circuit 325 and to access interface logical circuit 325 and is interrupted reporting logical circuit 324 to report to the interruption of CPU 33 hot plug pin P1～P3 that module slot 30 is arranged is become any non-overall height level state combination by the combination of overall height level state after; After the combination of non-overall height level state combination becoming overall height level state, notify control execution logic circuit 323 to trigger and interrupt reporting logical circuit 324 to report by any at the hot plug pin P1～P3 that detects module slot 30 to the interruption of CPU 33 with access interface logical circuit 325 and to access interface logical circuit 325.

Quantity recognition logic circuit 322; After knowing that having the hot plug of module slot pin P1～P3 to become any non-overall height level state by the combination of overall height level state makes up, the non-overall height level state combination of pin senses logical circuit 321 detected these module slots 30 is identified as the power unit quantity required of correspondence.

For the situation of being carried out aforementioned judgements and aforementioned maintenance by logic chip 32: quantity recognition logic circuit 322 offers control execution logic circuit 323 with the power unit quantity required that identifies;

For the situation of being carried out aforementioned judgements and aforementioned maintenance by CPU 33: quantity recognition logic circuit 322 offers the power unit quantity required that identifies access interface logical circuit 325, obtains to supply with CPU 33.

Control execution logic circuit 323; Obtaining the aforementioned judgement of expression that CPU 33 issues and aforementioned maintenance from access interface logical circuit 325 is the notice of being carried out or being carried out by CPU 33 by logic chip 32, and whether decision is responsible for aforementioned judgement and the aforementioned maintenance carried out by logic chip 32 according to this.Do not issue this notice if get access to CPU 33, then give tacit consent to by the control execution logic circuit in the logic chip 32 323 and carry out.

For the situation of being carried out aforementioned judgements and aforementioned maintenance by logic chip 32: control execution logic circuit 323 is obtained the power unit that CPU 33 issues from access interface logical circuit 325 can be set to the initial value by the power unit volume residual of its maintenance with sum with sum and power unit; Control execution logic circuit 323 is after knowing that having the hot plug of module slot 30 pin P1～P3 to become any non-overall height level state by the combination of overall height level state makes up; Judge that whether current power unit volume residual is more than or equal to the power unit quantity required that identifies; If; Then with the power pin V1 and power supply 31 conductings of this module slot 30 and upgrade the power unit volume residual of its maintenance; And the hardware module 40 in notice access interface logical circuit 325 these module slots 30 has powered on; Otherwise, keep the disconnection of power pin V1 and the power supply 31 of this module slot 30, until current power unit volume residual more than or equal to the power unit quantity required that identifies from this module slot 30; Knowing the hot plug of module slot 30 pin P1～P3 is arranged by any after combination of non-overall height level state combination becoming overall height level state; The power pin V1 and the power supply 31 of this module slot 30 are broken off; And the hardware module 40 that has powered in notice access interface logical circuit 325 these module slots 30 is de-energized and extracts;

For the situation of carrying out aforementioned judgements and aforementioned maintenance by CPU 33: control execution logic circuit 323 CPU 33 judge current power unit volume residual more than or equal to the power unit quantity required that identifies after; Can get access to expression that CPU 33 issues with the power pin V1 of respective modules slot 30 and the instruction of power supply 31 conductings from access interface logical circuit 325; According to power pin V1 and power supply 31 conductings of this instruction with this module slot 30; If do not get access to this instruction, then keep the disconnection of power pin V1 and the power supply 31 of this module slot 30, until getting access to this instruction; Knowing the hot plug of module slot 30 pin P1～P3 is arranged by any after combination of non-overall height level state combination becoming overall height level state; The power pin V1 and the power supply 31 of this module slot 30 are broken off; And the hardware module 40 that has powered in notice access interface logical circuit 325 these module slots 30 is de-energized and extracts.

Interruption reports logical circuit 324, decides the module slot 30 that when need interrupt to being triggered to carry out through monitoring access interface logical circuit 325 and interrupts reporting.

For the situation of carrying out aforementioned judgements and aforementioned maintenance by logic chip 32: module slot 30 is being arranged because its hot plug pin P1～P3 when becoming any non-overall height level state combination and be triggered interruption by the combination of overall height level state; Interruption reports logical circuit 324 can not report the power pin V1 and the power supply 31 that interrupt but need to wait for this module slot 30 to be switched on to CPU 33 immediately; That is, interrupt reporting logical circuit 324 the power pin V1 that module slot 30 is arranged and power supply 31 be switched on the back to CPU33 report interruption, hardware module 40 has powered in CPU 33 these module slots 30 to notify; When having module slot 30 to be triggered interruption by any non-overall height level state combination becoming overall height level state combination owing to its hot plug pin P1～P3; Interruption reports logical circuit 324 to report interruption to CPU 33 immediately; That is non-overall height level state combination becoming overall height level state combination back reports interruption, is de-energized and extracts to notify the hardware module 40 that has powered in CPU 33 these module slots 30 to CPU 33 by any at hot plug pin P1～P3 that module slot 30 is arranged, to interrupt reporting logical circuit 324;

For the situation of carrying out aforementioned judgements and aforementioned maintenance by CPU 33: become any non-overall height level state combination by the combination of overall height level state and be triggered when interrupting at hot plug pin P1～P3 that module slot 30 is arranged, interrupt reporting logical circuit 324 to need not to wait for that the power pin V1 of this module slot 30 is switched on and can directly reports interruptions, to notify hardware module 40 insertions arranged in CPU 33 these module slots 30 to CPU 33 with power supply 31; Be triggered by any non-overall height level state combination becoming overall height level state combination when interrupting at hot plug pin P1～P3 that module slot 30 is arranged, interrupt reporting logical circuit 324 directly to report interruptions, be de-energized and extract to notify the hardware module 40 that has powered in CPU 33 these module slots 30 to CPU 33.

Access interface logical circuit 325; Its maintenance has and can selected a field and a power unit can use total digital section by a control maintenance of CPU 33 visits; And, also safeguard have and can be plugged attribute field, an interruption status field, a power unit demand field and a power-up state field to each module slot 30 respectively by one of CPU 33 visits.

Specifically referring to Fig. 7:

Control is safeguarded and is selected field; It can be set to the mark 1 that expression is carried out the sign 0 of (promptly being equivalent to be responsible for execution by control execution logic circuit 323) aforementioned judgement and aforementioned maintenance or represented to be carried out by CPU 33 aforementioned judgement and aforementioned maintenance by logic chip 32 by CPU 33, in order to realize that CPU 33 issues the aforementioned judgement of expression and aforementioned maintenance is to carry out (promptly being equivalent to be responsible for execution by controlling execution logic circuit 323) or the notice of being carried out by CPU 33 by logic chip 32.

Power unit can be used total digital section; It is for the situation of being carried out aforementioned judgement and aforementioned maintenance by logic chip 32; Can be used sum (for example representing 32 power units) by CPU 33 Writing power units, in order to realize that to the situation of carrying out (promptly being equivalent to be responsible for execution) aforementioned judgement and aforementioned maintenance by logic chip 32 CPU 33 issues power unit and can use sum by control execution logic circuit 323 with 0x20; It can not be used for the situation of carrying out aforementioned judgement and aforementioned maintenance by CPU 33.

The plug attribute field; It is for two kinds of situation being carried out aforementioned judgements and aforementioned maintenance by logic chip 32 and carried out aforementioned judgements and aforementioned maintenance by CPU 33; All can be set to represent to have in the corresponding module slot 30 mark 1 of hardware module 40 insertions or the mark 0 that the corresponding module slot 30 interior hardware modules 40 of expression are pulled out, know in the corresponding module slot 30 for CPU 33 whether hardware module 40 is arranged by pin senses logical circuit 321;

Power unit demand field, it can not be used for the situation of carrying out aforementioned judgement and aforementioned maintenance by logic chip 32; It is for the situation of being carried out aforementioned judgement and aforementioned maintenance by CPU 33; Can be written in the power unit quantity required (for example represent 2 power units of needs, represent 3 power units of needs ... represent 8 power units of needs) that respective modules slot 30 identifies by quantity recognition logic circuit 322, obtain for CPU 33 with 0x8 with 0x3 with 0x2;

The power-up state field; It is for the situation of being carried out aforementioned judgement and aforementioned maintenance by logic chip 32; But Be Controlled execution logic circuit 323 is set to represent the power pin V1 of the module slot 30 that the power pin V1 of corresponding module slot 30 is corresponding with mark 1, the expression of power supply 31 conductings and the mark 0 of power supply 31 disconnections, for CPU 33 know that these module slot 30 interior hardware modules 40 have powered on and this module slot 30 in the hardware module 40 that powered on be de-energized and extract; It is for the situation of being carried out aforementioned judgement and aforementioned maintenance by CPU 33; Can be set to represent that the power pin V1 of corresponding module slot 30 is set to represent the power pin V1 of corresponding module slot 30 and the mark 0 of power supply 31 disconnections with mark 1, the Be Controlled execution logic circuit 323 of power supply 31 conductings by CPU 33, issue expression with realization CPU 33 hardware module 40 that has powered in the instruction of power pin V1 and power supply 31 conductings and this module slot 30 is de-energized and extracts.

The interruption status field is for two kinds of situation being carried out aforementioned judgements and aforementioned maintenance by logic chip 32 and carried out aforementioned judgements and aforementioned maintenance by CPU 33; All can be set to represent the mark that corresponding module slot has interruption to handle by pin senses logical circuit 321; Interrupt reporting logical circuit 324 to be switched on and to be disconnected the back at the power pin V1 that module slot 30 is arranged with power supply 31 reporting interruption according to this mark to CPU 33 to trigger to the situation of being carried out said judgements and said maintenance by logic chip 32, the situation of also carrying out said judgements and said maintenance to CPU 33 triggers interrupts reporting logical circuit 324 to be become any non-overall height level state combination back by the combination of overall height level state and after the power pin V1 that module slot 30 is arranged and power supply 31 disconnections, report interruption to CPU 33 at all hot plug pin P1～P3 that module slot 30 is arranged;

The interruption status field is for two kinds of situation being carried out aforementioned judgements and aforementioned maintenance by logic chip 32 and carried out aforementioned judgements and aforementioned maintenance by CPU 33; Also all can be set to represent that corresponding module slot 30 does not have interrupts the mark that will handle, so that interrupt reporting logical circuit 324 to stop to report interruption to CPU by CPU 33.

In the practical application, control safeguards that the initial default state of selecting field is for representing to be carried out by logic chip 32 mark 0 of (promptly being equivalent to be responsible for execution by control execution logic circuit 323) aforementioned judgement and aforementioned maintenance; The mark 0 that the initial default state of plug attribute field is pulled out for the hardware module 40 in the corresponding module slot 30 of expression; The initial default state of interruption status field does not have the mark 1 that interruption will be handled for the corresponding module slot 30 of expression; The initial default state of power-up state field is the power pin V1 of the corresponding module slot 30 of expression and the mark 0 of power supply 31 disconnections.

Only be to be example in the device 300 of above embodiment with 3 hot plug pin P1～P3; But in practical application; As long as the hot plug pins in each module slot 30 satisfy at least 2 effects that just can produce expression power unit quantity required equally, just the span of the power unit quantity required that can represent can distinguish to some extent along with the difference of the quantity of hot plug pin.

And the device 300 of above embodiment can Dynamic Selection be carried out (promptly being equivalent to be responsible for execution by control execution logic circuit 323) or carried out aforementioned judgement and aforementioned maintenance by CPU 33 by logic chip 32.But in the practical application; Also can select a ground fixes by logic chip 32 execution (promptly being equivalent to be responsible for execution by control execution logic circuit 323) or by CPU 33 aforementioned judgement of execution and aforementioned maintenances; At this moment, just do not need CPU 33 to issue yet needs no longer just of operation such as corresponding notice again.Correspondingly; In Fig. 6; Be to carry out aforementioned judgement and the aforementioned example that is maintained as dynamically to select a ground between logic chip 32 and the CPU 33; In the practical application,, then can only keep part-structure, operating process and the field that is applied to corresponding situation among Fig. 6 if carry out aforementioned judgement and aforementioned maintenance by logic chip 32 or CPU 33 with immobilizing.

More than be to being used for hardware module is realized the detailed description of the device of power supply control in the embodiment of the invention.Below, to being used in the embodiment of the invention hardware module is realized that the method for power supply control is elaborated again.

Be used for hardware module is realized the method for power supply control in the present embodiment; Be mainly used in the electronic equipment that comprises a plurality of modules slot and a power supply, each module slot have power pin, ground pin and by on draw hot plug pin into high level state;

What be different from prior art is; This method all is set at least two with the hot plug pin of each module slot, make all hot plug pins of each module slot can be inserted into this module slot hardware module conducting selectively to this module slot ground pin and become low level state, with any non-overall height level state combination of the power unit quantity required that forms this hardware module of expression.

Fig. 8 is for being used for hardware module is realized the method flow diagram of power supply control in the embodiment of the invention.As shown in Figure 8, be used in the present embodiment hardware module is realized that the method for power supply control is directed against each module slot and carries out following steps:

Step 800, the level that detects all hot plug pins of this module slot changes, and becomes any non-overall height level state combination if detect all hot plug pins of this module slot by the combination of overall height level state, and then execution in step 801; If all hot plug pins that detect module slot are by any non-overall height level state combination becoming overall height level state combination, then execution in step 805.

Step 801 identifies corresponding power unit quantity required according to the non-overall height level state combination of detected this kind, and execution in step 802 then.

Whether step 802 judges current power unit volume residual more than or equal to the power unit quantity required that identifies, if execution in step 803 then, otherwise execution in step 804.

Step 803, power pin and power turn-on with this module slot return step 800 then.

Step 804 keeps the power pin of this module slot and the disconnection of power supply, returns step 802 then.

Step 805 with the power pin and the power supply disconnection of this module slot, is returned step 800 then.

It below promptly is the flow process of carrying out to each module slot.

In the practical application, can include a CPU usually in the electronic equipment, so, in this method in steps can be all carry out at CPU outside (also have in the applied electronic equipment of this method one be independent of outside the CPU logic chip).Perhaps, can carry out further the maintenance of power unit volume residual being delivered by CPU in judgement in the step 802 of this method and the step 803 and 805 separately.For this reason; It is in the outside notice of carrying out or being carried out by CPU of CPU that this method can further receive judgement and the maintenance in the step 803 and 805 in the expression step 802 that CPU issues, if do not receive this notice that CPU issues then give tacit consent in the outside execution of CPU so that offloading the CPU.

To the outside situation about carrying out of CPU that is maintained in judgement in the step 802 and the step 803 and 805, this method is further obtained the initial value that power unit that CPU issues can be set to the power unit volume residual with sum and power unit with sum; This method further reports interruption, is inserted with the hardware module that has powered in this module slot of notice CPU to CPU after step 803 is with the power pin of arbitrary module slot and power turn-on; The further step 805 of this method reports the power pin and the power supply disconnection back of arbitrary module slot interruption, is de-energized and extracts to notify the hardware module that has powered in this module slot of CPU to CPU;

To situation by the maintenance in judgement in the CPU execution in step 802 and the step 803 and 805, this method further at every turn through 800 detect module slot all hot plug pins non-overall height level state combination becoming overall height level state combination back reports interruptions, is inserted with the hardware module insertion in this module slot of notice CPU to CPU by any; This method further offers CPU with the power unit quantity required that step 801 identifies; This method further step 802 judge by CPU the current power unit volume residual of expression that arbitrary module slot issues more than or equal to the power unit quantity required that identifies after; Receive expression that CPU issues with the instruction of power pin and power turn-on and according in this instruction execution in step 803 with the power pin of this module slot and the operation of power turn-on; If do not receive this instruction, then keep the power pin of this module slot and the disconnection of power supply through execution in step 804.

The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.

Claims

1. a device that is used for hardware module is realized power supply control comprises module slot and logic chip and power supply, each module slot have power pin, ground pin and by on draw hot plug pin into high level state;

It is characterized in that the hot plug pin of each module slot is at least two; All hot plug pins of each module slot can be inserted into this module slot hardware module conducting selectively to this module slot ground pin and become low level state, with the level state combination of any non-overall height of the power unit quantity required that forms this hardware module of expression;

2. device as claimed in claim 1 is characterized in that logic chip comprises:

3. device as claimed in claim 1; It is characterized in that whether logic chip is further carried out current power unit volume residual more than or equal to the judgement of the power unit quantity required that identifies, the also further maintenance of carrying out current power unit volume residual.

4. device as claimed in claim 3 is characterized in that this device further comprises CPU;

5. device as claimed in claim 4 is characterized in that logic chip comprises:

6. device as claimed in claim 5 is characterized in that, logic chip further comprises can be by the access interface logical circuit of CPU visit;

7. device as claimed in claim 1; It is characterized in that; Whether this device further comprises CPU, and carried out current power unit volume residual more than or equal to the judgement of the power unit quantity required that identifies, the also further maintenance of carrying out current power unit volume residual by CPU.

8. device as claimed in claim 7 is characterized in that,

9. device as claimed in claim 8 is characterized in that logic chip comprises:

10. device as claimed in claim 9 is characterized in that, logic chip further comprises can be by the access interface logical circuit of CPU visit;

11. device as claimed in claim 1; It is characterized in that; Whether this device further comprises CPU, select a ground by logic chip and CPU and carry out current power unit volume residual more than or equal to the judgement of the power unit quantity required that identifies, the also further maintenance of carrying out current power unit volume residual.

12. device as claimed in claim 11 is characterized in that, CPU further issues to logic chip and representes that said judgement and said maintenance are by logic chip execution or the notice of being carried out by CPU.

13. device as claimed in claim 12 is characterized in that,

14. device as claimed in claim 13 is characterized in that, logic chip comprises:

15. device as claimed in claim 14 is characterized in that, logic chip further comprises can be by the access interface logical circuit of CPU visit;

And the access interface logical circuit also safeguards that to each module slot plug attribute field, interruption status field, power unit demand field and power-up state field are arranged respectively, wherein;

16. device as claimed in claim 15 is characterized in that,

17. a method that is used for hardware module is realized power supply control is applied to comprise in the electronic equipment of a plurality of modules slot and a power supply, each module slot have power pin, ground pin and by on draw hot plug pin into high level state;

It is characterized in that; This method comprises: the hot plug pin of each module slot all is set at least two, make all hot plug pins of each module slot can be inserted into this module slot hardware module conducting selectively to this module slot ground pin and become low level state, with any non-overall height level state combination of the power unit quantity required that forms this hardware module of expression;

This method also comprises:

18. method as claimed in claim 17 is characterized in that, further comprises CPU in the said electronic equipment;

19. method as claimed in claim 18 is characterized in that, this method further comprises: reception CPU issues the said judgement of expression and said maintenance is in outside execution of CPU or the notice of being carried out by CPU.

20. method as claimed in claim 19 is characterized in that,