CN108170255A - A kind of control device - Google Patents
A kind of control device Download PDFInfo
- Publication number
- CN108170255A CN108170255A CN201810068325.1A CN201810068325A CN108170255A CN 108170255 A CN108170255 A CN 108170255A CN 201810068325 A CN201810068325 A CN 201810068325A CN 108170255 A CN108170255 A CN 108170255A
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- Prior art keywords
- power supply
- domain
- signal
- module
- specified
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3237—Power saving characterised by the action undertaken by disabling clock generation or distribution
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
Abstract
The present invention discloses a kind of control device, including several power domains, power supply module and several switches；Power domain includes being used to implement the logic circuit to the control function of external devices, and several power domains include the first power domain comprising control circuit；Power supply module supplies electricity to power domain for exporting, and each power domain is connect respectively with power supply module, and switch is connected between power domain and power supply module；Control circuit is used for according to the sleep signal issued, control disconnects that shutdown is controlled to power to specified power supply domain with the switch that specified power supply domain is correspondingly connected with, it is additionally operable to according to the wake-up signal issued, control is closed with the switch that specified power supply domain is correspondingly connected with is powered with controlling to open to specified power supply domain.When suspend mode to be in, control circuit can control the switch that other power domains in addition to the first power domain are correspondingly connected with to disconnect, reduce the power consumption that control device is under suspend mode compared with the conventional method according to the sleep signal issued in this control device.
Description
Technical field
The present invention relates to chip power-consumption control field, more particularly to a kind of control device.
Background technology
In some low-power consumption application scenarios, for example body of a motor car control, fingerprint identification device, mobile equipment, card class etc. should
Higher to power consumption requirements in, control chip can achieve the purpose that save power consumption into suspend mode under specific circumstances.
During into suspend mode, in addition to the circuit of part storage important information and the logic circuit of control dormancy awakening function need to power
Outside, other logic circuits stop power supply.
In the prior art, the Low-power-consumptiodormancy dormancy pattern that chip uses is to save power consumption by the strategy of gated clock, i.e.,
The module clock for not needing to work is closed, reaches reduction power consumption by controlling the modular circuit unit that logic overturning does not occur
Purpose.But this mode, is only reduction of dynamic power consumption, and there are still quiescent dissipation, chips when chip enters suspend mode
Quiescent dissipation there is no reduce.
Invention content
The object of the present invention is to provide a kind of control devices, can reduce the work(under suspend mode compared with prior art
Consumption.
To achieve the above object, the present invention provides following technical solution：
A kind of power supply control apparatus, including several power domains, power supply module and several switches；
The power domain includes being used to implement the logic circuit to the control function of external devices, several power domain packets
Include the first power domain for including control circuit；
The power supply module supplies electricity to the power domain for exporting, and each power domain connects respectively with the power supply module
It connects, the switch is connected between the power domain and the power supply module；
The control circuit is used for according to the sleep signal issued, and control is disconnected with the switch that specified power supply domain is correspondingly connected with
It is powered with control shutdown to the specified power supply domain, is additionally operable to, according to the wake-up signal issued, control corresponding with specified power supply domain
The switch of connection is closed is powered with controlling to open to the specified power supply domain.
Optionally, the power supply module includes an output terminal, and each power domain is connect respectively with the output terminal.
Optionally, the power supply module include several output terminals, several power domains respectively with several output terminals
It connects one to one, the switch is connected between the power domain and the corresponding output terminal.
Optionally, the power supply module includes at least the first output terminal and second output terminal, the first output terminal output
Driving current be less than the second output terminal output driving current；
First power domain is connect with first output terminal, other several power domains and the described first output
End connection, several power domains are connect with the second output terminal.
Optionally, the power supply module includes the first output terminal and second output terminal, the drive of the first output terminal output
Streaming current is less than the driving current of second output terminal output；
Several power domains further include second source domain and third power domain, first power domain and described first defeated
Outlet connects, and the second source domain connect by switching with first output terminal, the third power domain by switching and
The second output terminal connection.
Optionally, the control circuit includes：
Control module, for entering the sleep signal of suspend mode for specified power supply domain, and do not detect detecting
During to wake-up signal for the specified power supply domain, the reset request letter for the specified power supply domain is sent out to reseting module
Number, and receive reseting module output for the specified power supply domain reset answer signal when, to clock module
The clock turn-off request signal for the specified power supply domain is sent out, and is closed receiving the clock for the specified power supply domain
When closing answer signal, generation is directed to the isolation control signal in the specified power supply domain, and after timing preset time, generation is used for
The signal that control is disconnected with the switch that the specified power supply domain is correspondingly connected with, exports and gives the switch；
The reseting module, for when receiving the reseting request signal for the specified power supply domain, making the finger
The reset signal for determining power domain is effective, and accordingly output is directed to the reset answer signal in the specified power supply domain；
The clock module, for when receiving the clock turn-off request signal for the specified power supply domain, turning off
The clock in the specified power supply domain, and send out the clock closing answer signal for the specified power supply domain；
Wake-up module, for sending the wake-up signal for specified power supply domain to the control module；
The control module is additionally operable to, when receiving the wake-up signal for specified power supply domain, generation for control with
The signal that the switch that the specified power supply domain is correspondingly connected with is closed, exports and gives the switch；Then after timing preset time, revocation
For the isolation control signal in the specified power supply domain；After timing preset time, sent out to the reseting module for described
The reset revocation request signal in specified power supply domain；
The reseting module is additionally operable to, when receiving the reset revocation request signal for the specified power supply domain, make institute
The reset signal for stating specified power supply domain is invalid, and the specified power supply domain is made to switch to normal operating conditions from reset state.
Optionally, if the power supply module is not connected with what other needs were powered with the output terminal that the specified power supply domain is connect
During the power domain, then the control circuit is specifically used for according to the sleep signal issued, control and the specified power supply domain pair
The switch disconnection that should be connected, and corresponding output terminal in the power supply module is controlled to stop output electricity, it is turned off with control to described
Specified power supply domain powers；
If the output terminal that the power supply module is connect with the specified power supply domain stops output electricity, the control circuit
Also particularly useful for according to the wake-up signal issued, corresponding output terminal in the power supply module is controlled to open output electricity, and control
It is closed with the switch that the specified power supply domain is correspondingly connected with, is opened to the specified power supply domain and powered with control.
Optionally, the control circuit includes：
Control module, for entering the signal of suspend mode for specified power supply domain, and do not detect needle detecting
During to the wake-up signal in the specified power supply domain, the reseting request signal for the power domain is sent out to reseting module, and
Receive reseting module output for the specified power supply domain reset answer signal when, send out and be directed to clock module
The clock turn-off request signal in the specified power supply domain, and close response letter receiving the clock for the specified power supply domain
Number when, generation is for the isolation control signal in the specified power supply domain, and after timing preset time, generation is for controlling and institute
The signal that the switch that specified power supply domain is correspondingly connected with disconnects is stated, exports and gives the switch, then after timing preset time, to described
Power supply module exports the letter for the output terminal being correspondingly connected in the power supply module with specified power supply domain to be controlled to stop output electricity
Number；
The reseting module, for when receiving the reseting request signal for the specified power supply domain, making the finger
The reset signal for determining power domain is effective, and accordingly output is directed to the reset answer signal in the specified power supply domain；
The clock module, for when receiving the clock turn-off request signal for the specified power supply domain, turning off
The clock in the specified power supply domain, and send out the clock closing answer signal for the specified power supply domain；
Wake-up module, for sending the wake-up signal for specified power supply domain to the control module；
The control module is additionally operable to, when receiving the wake-up signal for specified power supply domain, to the power supply module
It exports for the output terminal being correspondingly connected in the power supply module with specified power supply domain to be controlled to open the signal of output electricity, and works as and visit
Measure the output terminal being correspondingly connected in the power supply module with specified power supply domain stablized output electricity indication signal when, timing is pre-
If after the time, generation exports for the signal that the switch being correspondingly connected with the specified power supply domain is controlled to be closed and gives the switch；So
Afterwards after timing preset time, revocation is for the isolation control signal in the specified power supply domain；After timing preset time, to institute
State reseting module send out for the specified power supply domain reset cancel request signal；
The reseting module is additionally operable to, when receiving the reset revocation request signal for the power domain, make the finger
The reset signal for determining power domain is invalid, and the specified power supply domain is made to switch to normal operating conditions from reset state.
Optionally, the clock module includes：
Crystal oscillator clock is respectively connected with the control module, timing unit, for exporting clock signal；
The timing unit, for the control module incoming timing pulse signal.
Optionally, the power supply module is included for the Voltagre regulator of the power domain output voltage.
As shown from the above technical solution, control device provided by the present invention, if including several power domains, power supply module and
Dry switch, wherein, power domain includes being used to implement the logic circuit to the control function of external devices, and several power domains include
The first power domain comprising control circuit；Power supply module supplies electricity to power domain for exporting, and each power domain connects respectively with power supply module
It connects, switch is connected between power domain and power supply module.Control circuit is used for according to the sleep signal issued, and control is with specifying
The switch that power domain is correspondingly connected with disconnects that shutdown is controlled to power to specified power supply domain, is additionally operable to according to the wake-up signal issued,
Control is closed with the switch that specified power supply domain is correspondingly connected with is powered with controlling to open to specified power supply domain.
When suspend mode to be entered, control circuit can enter the sleep signal of suspend mode according to the instruction issued,
The switch that other power domains in addition to the first power domain are correspondingly connected with is controlled to disconnect, with control shutdown to except the first power domain it
Outer other power domains power supply, makes other power domains be stopped.As can be seen that it is removed in this control device when entering suspend mode
Other each power domains except first power domain are in off-position, compared with the conventional method, when avoiding into suspend mode
There are still static power consumption, therefore reduce the power consumption that control device is under suspend mode.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of schematic diagram of control device provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of a kind of control device that further embodiment of this invention provides；
Fig. 3 is the schematic diagram of a kind of control device that further embodiment of this invention provides；
Fig. 4 is the schematic diagram of control circuit in control device of the embodiment of the present invention；
Fig. 5 is that control circuit controls power domain to switch between power-down mode and normal mode of operation in the embodiment of the present invention
State diagram.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the technical solution in the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described implementation
Example is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiments obtained without making creative work, should all belong to protection of the present invention
Range.
The embodiment of the present invention provides a kind of control device, including several power domains, power supply module and several switches；
The power domain includes being used to implement the logic circuit to the control function of external devices, several power domain packets
Include the first power domain for including control circuit；
The power supply module supplies electricity to the power domain for exporting, and each power domain connects respectively with the power supply module
It connects, the switch is connected between the power domain and the power supply module；
The control circuit is used for according to the sleep signal issued, and control is disconnected with the switch that specified power supply domain is correspondingly connected with
It is powered with control shutdown to the specified power supply domain, is additionally operable to, according to the wake-up signal issued, control corresponding with specified power supply domain
The switch of connection is closed is powered with controlling to open to the specified power supply domain.
Wherein, the processing such as transformation, voltage stabilizing are carried out to the output electricity of power supply by power supply module, exported to power domain, power domain
During in energized state it includes logic circuit can the control function to external devices can be realized with normal operation.
Switch has been correspondingly connected between power domain and power supply module in the case of power supply module output terminal output electricity,
When the switch closure being correspondingly connected with power domain, the power domain is connected with power supply module；When the switch being correspondingly connected with power domain
The power domain is disconnected with power supply module during disconnection, which is in off-position.
When suspend mode to be entered, control circuit can enter the sleep signal of suspend mode according to the instruction issued,
The switch that other power domains in addition to the first power domain are correspondingly connected with is controlled to disconnect, with control shutdown to except the first power domain it
Outer other power domains power supply, makes other power domains be stopped.As can be seen that it is removed in this control device when entering suspend mode
Other each power domains except first power domain are in off-position, compared with the conventional method, when avoiding into suspend mode
There are still static power consumption, thus reduce the power consumption that control device is under suspend mode.
In one embodiment, it please refers to Fig.1, the power supply module 10 includes an output terminal 100, each power supply
Domain 11 is connect respectively with the output terminal 100.
Wherein, the first power domain 11 keeps connecting with power supply module output terminal 100, keeps powering to the first power domain 11,
Ensure it includes control circuit 12 run.
Switch 13 is connected separately between 10 output terminal 100 of other each power domains 11 and power supply module, it is defeated in power supply module
In the case that outlet 100 exports electricity, when the switch being correspondingly connected with power domain is closed, opens to the power domain and input electricity；When
When being disconnected with the switch that power domain is correspondingly connected with, have turned off to the power domain and input electricity.
Control circuit 12 controls the switch being correspondingly connected with specified power supply domain to disconnect controlling according to the sleep signal issued
It turns off and powers to specified power supply domain, be additionally operable to the switch being correspondingly connected with according to the wake-up signal issued, control with specified power supply domain
It is closed and is powered with controlling to open to specified power supply domain.
When suspend mode to be in, control circuit can enter the sleep signal of suspend mode according to the instruction issued,
The switch that other power domains in addition to the first power domain are correspondingly connected with is controlled to disconnect, control shutdown is powered to other power domains.
In another embodiment, it please refers to Fig.2, the power supply module 20 includes several output terminals 200, if supply
Domain 21 connects one to one respectively with several output terminals 200.
Wherein, one of output terminal 200 of the first power domain 21 and power supply module 20 keeps connecting, to keep to first
Power domain 21 is powered, ensure it includes control circuit 22 can run.
Be connected with switch 23 between other each power domains 21 output terminal 200 corresponding on power supply module 20, when with power supply
When the switch that domain is correspondingly connected with is closed, which is in energized state；When the switch being correspondingly connected with power domain disconnects, close
Break and inputted electricity to the power domain, which is in off-position.
In practical applications, 22 power consumption of control circuit is smaller, thus can accordingly set on power supply module 20 with the first power supply
The driving current of the output voltage of output terminal 200 that domain is correspondingly connected with is smaller.In the specific implementation, it is included in control circuit 22
Logic circuit few as possible, as long as ensureing that whole device can normally enter suspend mode and normal wakeup, to ensure to stop
Power consumption is saved under sleep mode to the maximum extent.
For other output terminals of power supply module 20, each power domain matches with the driving current exported with its demand defeated
Outlet connects.
Therefore in present embodiment, power supply module is independently powered to each power domain, and each power domain can be with mould of powering
The output terminal connection for the driving current that matches is exported on block, each output terminal is respectively the driving electricity that each power domain offer matches
Stream can neatly power for each power domain.
In present embodiment, the mode that control circuit 22 controls power domain to be powered or power off can be：Control circuit 22
According to the sleep signal issued, control disconnects controlling shutdown to the specified power supply with the switch that specified power supply domain is correspondingly connected with
Domain powers, and is additionally operable to according to the wake-up signal issued, control is closed with the switch that specified power supply domain is correspondingly connected with and is opened with controlling
It powers to the specified power supply domain.
In present embodiment, each power domain connects one to one respectively with output terminal each on power supply module, further, control
The mode that circuit 22 processed controls power domain to be powered or power off can also be：The control circuit 22 is specifically used for what basis issued
Sleep signal, control disconnect, and control corresponding output terminal on the power supply module with the switch that specified power supply domain is correspondingly connected with
Stop output electricity, powered with control shutdown to the specified power supply domain；The control circuit 22 is additionally operable to according to the wake-up issued
Signal, control are closed with the switch that specified power supply domain is correspondingly connected with, and corresponding output terminal on the power supply module is controlled to open
Output electricity, is opened to the specified power supply domain with control and powered.
In this control mode, when specified power supply domain is controlled to enter suspend mode, control is correspondingly connected with specified power supply domain
Switch disconnect, and the output terminal that is correspondingly connected on power supply module with the power domain is controlled to stop output electricity, reduce in this way
Power consumption.
In another embodiment, the power supply module includes at least the first output terminal and second output terminal, and described the
The driving current of one output terminal output is less than the driving current of second output terminal output；Wherein, first power domain with
First output terminal connection, other several power domains are connect with first output terminal, several power domains and
The second output terminal connection.
In present embodiment, the voltage of the first output terminal and second output terminal the output different driving electric current of power supply module,
The relatively low power domain of power consumption can be connect with the first output terminal, the high power domain of power consumption can be connect with second output terminal,
The power reguirements of each power domain can not only be met in this way, and it is flexible to power, and can effectively reduce power consumption.
In present embodiment, control circuit control power domain is powered or the mode of power-off can be：Control circuit according to
The sleep signal issued, control disconnect that shutdown is controlled to supply to the specified power supply domain with the switch that specified power supply domain is correspondingly connected with
Electricity is additionally operable to according to the wake-up signal issued, and control is closed with the switch that specified power supply domain is correspondingly connected with and is opened with controlling to institute
State the power supply of specified power supply domain.
Further, if power supply module is not connected with other power domains for needing to power with the output terminal that specified power supply domain is connect
When, then the control circuit is specifically used for according to the sleep signal issued, and control is opened with what the specified power supply domain was correspondingly connected with
Shutdown is opened, and corresponding output terminal in the power supply module is controlled to stop output electricity, is turned off with control to the specified power supply domain
Power supply；If the output terminal that the power supply module is connect with the specified power supply domain stops output electricity, the control circuit is also
Specifically for according to the wake-up signal that issues, corresponding output terminal in the power supply module being controlled to open output electricity, and control with
The switch that the specified power supply domain is correspondingly connected with is closed, and is opened to the specified power supply domain and powered with control.Contribute to drop in this way
Low-power consumption.
It specifically please refers to Fig.3, in a kind of specific example, the power supply module 30 includes the first output terminal 300 and the
Two output terminals 301, the driving current that first output terminal 300 exports are less than the driving electricity of the second output terminal 301 output
Stream；Several power domains include the first power domain 310 comprising control circuit 32, further include second source domain 311 and third power supply
Domain 312, first power domain 310 are connect with first output terminal 300, the second source domain 301 by switch 33 with
First output terminal 300 connects, and the third power domain 302 is connect by switch 33 with the second output terminal 301.
In the present embodiment control device, for smaller first power domain 310 of required supply current and second source domain
311, then first output terminal 300 small with output driving current connect, to its transmission electricity；For the third power domain that power consumption is larger
312, it is powered by second output terminal for it.
The present embodiment control device, if control circuit is on or off to specified power supply domain according to the signal control issued
The mode of power supply is：Control is closed or disconnects with the switch that specified power supply domain is correspondingly connected with, then the processing procedure of control circuit
It is specific as follows：
It please refers to Fig.4, the control circuit includes：Control module 400, for detecting for the entrance of specified power supply domain
The sleep signal of suspend mode, and when not detecting the wake-up signal for the specified power supply domain, sent out to reseting module 401
Go out to be directed to the reseting request signal in the specified power supply domain, and receiving that the reseting module 401 exports for the finger
When determining the reset answer signal of power domain, the clock turn-off request letter for the specified power supply domain is sent out to clock module 402
Number, and when receiving the clock closing answer signal for the specified power supply domain, generation is for the specified power supply domain
Isolation control signal, and after timing preset time, switch of the generation for control to be correspondingly connected with the specified power supply domain breaks
The signal opened exports and gives the switch；
The reseting module 401, it is described for when receiving the reseting request signal for the specified power supply domain, making
The reset signal in specified power supply domain is effective, and accordingly output is directed to the reset answer signal in the specified power supply domain；
The clock module 402, for when receiving the clock turn-off request signal for the specified power supply domain, closing
The clock in the disconnected specified power supply domain, and send out the clock closing answer signal for the specified power supply domain；
Wake-up module 403, for sending the wake-up signal for specified power supply domain to the control module 400；
The control module 400 is additionally operable to, and when receiving the wake-up signal for specified power supply domain, generates to control
The signal being closed with the switch that the specified power supply domain is correspondingly connected with, exports and gives the switch；Then it after timing preset time, removes
Pin is to the isolation control signal in the specified power supply domain；After timing preset time, send out and be directed to the reseting module 401
The reset revocation request signal in the specified power supply domain；
The reseting module 401 is additionally operable to when receiving the reset revocation request signal for the specified power supply domain,
The reset signal for making specified power supply domain is invalid, and the specified power supply domain is made to switch to normal operating conditions from reset state.
If control circuit is according to the on or off mode powered to specified power supply domain of signal control issued：Control
Circuit is disconnected with the switch that specified power supply domain is correspondingly connected with and is controlled corresponding in power supply module according to the sleep signal issued, control
Output terminal stop output electricity, powered with control shutdown to the specified power supply domain and according to the wake-up signal issued, control
It is closed with the switch that specified power supply domain is correspondingly connected with and corresponding output terminal in power supply module is controlled to open output electricity, opened with control
It opens and powers to the specified power supply domain, then the processing procedure of control circuit is specific as follows：
It please refers to Fig.4, the control circuit includes：
Control module 400, for entering the sleep signal of suspend mode for specified power supply domain, and do not visit detecting
When measuring the wake-up signal for the specified power supply domain, the reset for the specified power supply domain is sent out to reseting module 401
Request signal, and receive that the reseting module 401 exports for the specified power supply domain reset answer signal when, to
Clock module 402 sends out the clock turn-off request signal for the specified power supply domain, and is receiving for the specified electricity
When the clock of source domain closes answer signal, generation is directed to the isolation control signal in the specified power supply domain, and when timing is preset
Between after, generation for control with the specified power supply domain be correspondingly connected with switch disconnect signal, export and give the switch, Ran Hou
After timing preset time, export to control what is be correspondingly connected with specified power supply domain in the power supply module to the power supply module
Output terminal stops the signal of output electricity；
The reseting module 401, it is described for when receiving the reseting request signal for the specified power supply domain, making
The reset signal in specified power supply domain is effective, and accordingly output is directed to the reset answer signal in the specified power supply domain；
The clock module 402, for when receiving the clock turn-off request signal for the specified power supply domain, closing
The clock in the disconnected specified power supply domain, and send out the clock closing answer signal for the specified power supply domain；
Wake-up module 403, for sending the wake-up signal for specified power supply domain to the control module 400；
The control module 400 is additionally operable to, when receiving the wake-up signal for specified power supply domain, to the power supply mould
Block output is worked as the output terminal being correspondingly connected in the power supply module with specified power supply domain to be controlled to open the signal of output electricity
Detect the output terminal being connect in the power supply module with specified power supply domain stablized output electricity indication signal when, timing is preset
After time, generation exports for the signal that the switch being correspondingly connected with the specified power supply domain is controlled to be closed and gives the switch；Then
After timing preset time, revocation is for the isolation control signal in the specified power supply domain；After timing preset time, to described
Reseting module 401 sends out the reset revocation request signal for the specified power supply domain；
The reseting module 401 is additionally operable to when receiving the reset revocation request signal for the specified power supply domain,
The reset signal for making specified power supply domain is invalid, and the specified power supply domain is made to switch to normal operating conditions from reset state.
During process described above, the generation of control module 400 is for the isolation control letter in the specified power supply domain
Number, isolation control signal is handed down to the other power domains in power supply state for receiving specified power supply domain signal, makes it
Its power domain, which forms the specified power supply domain, is isolated.Other power domains are interfered and shadow after being powered off to avoid specified power supply domain
It rings.
With reference to state of a control figure, power domain is controlled control circuit in the present embodiment control device from normal work mould
Formula switches to power-down mode and the processing procedure of normal mode of operation is switched to from power-down mode and is described in detail,
Please refer to Fig. 5, control circuit control specified power supply domain from normal mode of operation switch to power-down mode it is specific from
Reason process is：
When in default conditions, detect for specified power supply domain into suspend mode signal when, into for
The reset request state in specified power supply domain；
When in reset request state, if receiving the wake-up for specified power supply domain that the wake-up module 403 is sent
Signal then skips to default conditions, otherwise sends out reseting request signal for specified power supply domain to reseting module 401, makes reset
Module 401 sends out reset signal to specified power supply domain, and specified power supply domain is made to become reset state；And receiving reseting module
401 output for specified power supply domain reset answer signal when, skip to clock off status；
When in clock off status, sending out the clock turn-off request signal for specified power supply domain to clock module 402, make
Clock module 402 turns off the clock in specified power supply domain,；And when receiving clock closing answer signal, skip to isolation open state；
When in isolation open state, the isolation control signal in generation specified power supply domain, and after timing preset time, skip to
Switch off status；
It is defeated when the signal disconnected in switch off status, generation for control with the switch that specified power supply domain is correspondingly connected with
Go out and give the switch, disconnect the switch；And after timing preset time, skip to off-position；
When in off-position, if the mode that control circuit is powered according to the signal control shutdown issued to specified power supply domain
It is that control disconnects with the switch that specified power supply domain is correspondingly connected with and needs to control corresponding output terminal in power supply module to stop exporting
Electricity then exports the letter for the output terminal being connect in power supply module with specified power supply domain to be controlled to stop output electricity to power supply module
Number, specified power supply domain is in power-down mode；If control circuit is powered according to the signal control shutdown issued to specified power supply domain
Mode is that control is disconnected with the switch that specified power supply domain is correspondingly connected with, then does not need to export to control to power supply module during this state
The output terminal being connect in power supply module processed with specified power supply domain stops the signal of output electricity.
Fig. 5 is please referred to, control circuit controls power domain to switch to the specific processed of normal mode of operation from power-down mode
Cheng Wei：
Specified power supply domain is in off-position, when detecting wake-up signal, if connecting in power supply module with specified power supply domain
The output terminal connect stops output electricity, then exports to control the output connecting with specified power supply domain in power supply module to power supply module
End starts the signal of output electricity, skips to power supply state；If the output terminal being connect in power supply module with specified power supply domain normally exports
Electricity then jumps directly to power supply state；
When in power supply state, the output terminal being connect in power supply module is received with specified power supply domain has stablized output electricity
Indication signal when, after timing preset time, skip to switch open state；
It is defeated when the signal being closed in switch open state, generation for control with the switch that specified power supply domain is correspondingly connected with
Go out and give the switch, be closed the switch, and after timing preset time, skip to isolation off status；
When in isolation off status, revocation after timing preset time, is jumped for the isolation control signal in specified power supply domain
To the reset turn-off request state for being directed to specified power supply domain；
Request signal is cancelled when in turn-off request state is resetted, sending out to reset to reseting module 401, makes reseting module
401 reset signals sent out to specified power supply domain are invalid, and specified power supply domain is made to switch to normal operating conditions.State of a control machine skips to
Default conditions.
Further, in the above various embodiments control device, the clock module includes：
Crystal oscillator clock is respectively connected with the control module, timing unit, for exporting clock signal；
The timing unit, for the control module incoming timing pulse signal.
The control circuit further includes storage unit SRAM, for storage chip important information.
In the control device, the power supply module includes the Voltagre regulator for output voltage, to ensure mould of powering
Block exports stable voltage to control module or each power domain.
A kind of control device provided by the present invention is described in detail above.Specific case pair used herein
The principle of the present invention and embodiment are expounded, and the explanation of above example is only intended to help to understand method of the invention
And its core concept.It should be pointed out that for those skilled in the art, before the principle of the invention is not departed from
Put, can also to the present invention some improvement and modification can also be carried out, these improvement and modification also fall into the guarantor of the claims in the present invention
In the range of shield.
Claims (10)
1. a kind of control device, which is characterized in that including several power domains, power supply module and several switches；
The power domain includes being used to implement the logic circuit to the control function of external devices, and several power domains include packet
The first power domain containing control circuit；
The power supply module supplies electricity to the power domain for exporting, and each power domain is connect respectively with the power supply module,
The switch is connected between the power domain and the power supply module；
The control circuit is used for according to the sleep signal issued, and the switch being correspondingly connected with specified power supply domain is controlled to disconnect controlling
System shutdown is powered to the specified power supply domain, is additionally operable to according to the wake-up signal issued, control is correspondingly connected with specified power supply domain
Switch be closed with control open to the specified power supply domain power.
2. control device according to claim 1, which is characterized in that the power supply module includes an output terminal, each institute
Power domain is stated to connect with the output terminal respectively.
3. control device according to claim 1, which is characterized in that the power supply module includes several output terminals, several
The power domain connects one to one respectively with several output terminals, between the power domain and the corresponding output terminal
It is connected with the switch.
4. control device according to claim 1, which is characterized in that the power supply module include at least the first output terminal and
Second output terminal, the driving current of the first output terminal output are less than the driving current of second output terminal output；
First power domain is connect with first output terminal, and other several power domains connect with first output terminal
It connects, several power domains are connect with the second output terminal.
5. control device according to claim 1, which is characterized in that the power supply module includes the first output terminal and second
Output terminal, the driving current of the first output terminal output are less than the driving current of second output terminal output；
Several power domains further include second source domain and third power domain, first power domain and first output terminal
Connection, the second source domain are connect by switching with first output terminal, the third power domain by switch with it is described
Second output terminal connects.
6. according to claim 1-5 any one of them control devices, which is characterized in that the control circuit includes：
Control module, for entering the sleep signal of suspend mode for specified power supply domain, and do not detect needle detecting
During to the wake-up signal in the specified power supply domain, the reseting request signal for the specified power supply domain is sent out to reseting module,
And receive reseting module output for the specified power supply domain reset answer signal when, sent out to clock module
It is answered for the clock turn-off request signal in the specified power supply domain, and receiving the clock closing for the specified power supply domain
When answering signal, generation is directed to the isolation control signal in the specified power supply domain, and after timing preset time, generates to control
The signal disconnected with the switch that the specified power supply domain is correspondingly connected with, exports and gives the switch；
The reseting module, for when receiving the reseting request signal for the specified power supply domain, making the specified electricity
The reset signal of source domain is effective, and accordingly output is directed to the reset answer signal in the specified power supply domain；
The clock module, for when receiving the clock turn-off request signal for the specified power supply domain, described in shutdown
The clock in specified power supply domain, and send out the clock closing answer signal for the specified power supply domain；
Wake-up module, for sending the wake-up signal for specified power supply domain to the control module；
The control module is additionally operable to, when receiving the wake-up signal for specified power supply domain, generation for control with it is described
The signal that the switch that specified power supply domain is correspondingly connected with is closed, exports and gives the switch；Then after timing preset time, revocation is directed to
The isolation control signal in the specified power supply domain；After timing preset time, sent out to the reseting module for described specified
The reset revocation request signal of power domain；
The reseting module is additionally operable to, when receiving the reset revocation request signal for the specified power supply domain, make specified electricity
The reset signal of source domain is invalid, and the specified power supply domain is made to switch to normal operating conditions from reset state.
7. according to claim 1-5 any one of them control devices, which is characterized in that if the power supply module is specified with described
When the output terminal of power domain connection is not connected with the power domain that other needs are powered, then the control circuit is specifically used for basis
The sleep signal issued, the switch that control is correspondingly connected with the specified power supply domain disconnect, and control it is right in the power supply module
The output terminal answered stops output electricity, is powered with control shutdown to the specified power supply domain；
If the output terminal that the power supply module is connect with the specified power supply domain stops output electricity, the control circuit also has
The wake-up signal that body issues for basis controls corresponding output terminal in the power supply module to open output electricity, and control and institute
It states the switch that specified power supply domain is correspondingly connected with to be closed, is opened to the specified power supply domain and powered with control.
8. control device according to claim 7, which is characterized in that the control circuit includes：
Control module, for entering the signal of suspend mode for specified power supply domain, and do not detect for institute detecting
When stating the wake-up signal in specified power supply domain, the reseting request signal for the power domain is sent out, and receiving to reseting module
To the reseting module export be directed to the specified power supply domain reset answer signal when, to clock module send out for described in
The clock turn-off request signal in specified power supply domain, and close answer signal receiving the clock for the specified power supply domain
When, generation for the specified power supply domain isolation control signal, and after timing preset time, generation for control with it is described
The signal that the switch that specified power supply domain is correspondingly connected with disconnects, exports and gives the switch, then after timing preset time, to the confession
Electric module exports the signal for the output terminal being correspondingly connected in the power supply module with specified power supply domain to be controlled to stop output electricity；
The reseting module, for when receiving the reseting request signal for the specified power supply domain, making the specified electricity
The reset signal of source domain is effective, and accordingly output is directed to the reset answer signal in the specified power supply domain；
The clock module, for when receiving the clock turn-off request signal for the specified power supply domain, described in shutdown
The clock in specified power supply domain, and send out the clock closing answer signal for the specified power supply domain；
Wake-up module, for sending the wake-up signal for specified power supply domain to the control module；
The control module is additionally operable to, and when receiving the wake-up signal for specified power supply domain, is exported to the power supply module
For the output terminal being correspondingly connected in the power supply module with specified power supply domain to be controlled to open the signal of output electricity, and work as and detect
When the output terminal being connect in the power supply module with specified power supply domain has stablized the indication signal of output electricity, timing preset time
Afterwards, generation exports for the signal that the switch being correspondingly connected with the specified power supply domain is controlled to be closed and gives the switch；Then it is counting
When preset time after, revocation for the specified power supply domain isolation control signal；After timing preset time, to the reset
Module sends out the reset revocation request signal for the specified power supply domain；
The reseting module is additionally operable to, when receiving the reset revocation request signal for the power domain, make specified power supply domain
Reset signal it is invalid, the specified power supply domain is made to switch to normal operating conditions from reset state.
9. according to the control device described in claim 6 or 8, which is characterized in that the clock module includes：
Crystal oscillator clock is respectively connected with the control module, timing unit, for exporting clock signal；
The timing unit, for the control module incoming timing pulse signal.
10. control device according to claim 1, which is characterized in that the power supply module is included for the power supply
The Voltagre regulator of domain output voltage.
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| CN201810068325.1A CN108170255B (en) | 2018-01-24 | 2018-01-24 | Control device |
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| CN113660713A (en) * | 2020-05-12 | 2021-11-16 | 大唐移动通信设备有限公司 | Active antenna processing unit, and method and device for switching working state |
| CN114003079A (en) * | 2020-07-28 | 2022-02-01 | 瑞昱半导体股份有限公司 | Circuit applied to multiple power domains |
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| CN108170255B (en) | 2020-07-03 |
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