CN106257464A - For the method connecting on and off switch in IC layout - Google Patents
For the method connecting on and off switch in IC layout Download PDFInfo
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- CN106257464A CN106257464A CN201510335206.4A CN201510335206A CN106257464A CN 106257464 A CN106257464 A CN 106257464A CN 201510335206 A CN201510335206 A CN 201510335206A CN 106257464 A CN106257464 A CN 106257464A
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Abstract
A kind of method for connecting on and off switch in integrated circuit layout comprises determining that the power supply area including multiple power switch unit, each power switch unit have input feeder ear, output feeder ear, control input and confirm outfan.The method also includes: select the power switch unit started；Confirmation outfan by the power switch unit of starting point is connected to the control input of second source switch element；And continue to connect until just connecting the most all on and off switch.
Description
Technical field
The present invention relates to the technology for connecting the on and off switch in IC design, and more specifically relate to
And just connect primary power source switch.
Background technology
In low-power IC designs, on and off switch or power switch unit (being abbreviated as " PSW ") are extensive
For controlling the power supply of the component in power domain.Based on operator scheme, can open or close power supply
Component in territory.This can be energy-conservation and reduce energy expenditure, and for Mobile solution, prolongs
Grow the use time that battery charges every time.
Summary of the invention
Embodiments of the invention relate to the wiring (connection) of the power switch unit in integrated circuit, and more
Body relates to do not have grand, has in a grand or multiple grand power supply area or voltage regime and connects
The method connecing power switch unit.Embodiments of the invention provide for connecting power supply in integrated circuit layout
The method of switch, described method comprises determining that the power supply area including multiple power switch unit, Mei Ge electricity
Source switch unit has input feeder ear, output feeder ear, controls input and confirm outfan.Described side
Method also includes: select the power switch unit started；By the confirmation outfan of starting point power switch unit even
Receive the control input of second source switch element；And continue to connect until all on and off switch are by just
Till connecting once.In one embodiment, the input feeder ear of the power switch unit of starting point is connected to
Power supply, and the power switch unit of starting point confirm that outfan is connected to the control of second source switch element
Input processed.
In one embodiment, the control input of the power switch unit of starting point is configured to receive control
Signal, and the confirmation outfan of the power switch unit of end point be configured to export confirmation signal.
In one embodiment, power switch unit configures or each with daisy chain configuration, fishbone configuration, E shape
The configuration of item combination connects.In one embodiment, E shape configures and includes multiple confirmation signal chain, wherein,
The quantity of the power switch unit of the longest confirmation signal chain is the power switch unit of other confirmation signal chain any
At least N times of quantity, N >=1.5.In one embodiment, E shape is configured to user configured.
In one embodiment, fishbone configuration include: have power switch unit main daisy chain main bone and
At the side seam that the opposite side of main bone is arranged, each side seam is connected to main bone.
In one embodiment, described method also comprises determining that whether barrier zones is present in one or many
In individual side seam；In the case of barrier zones is present in one or more side seam, disconnect on barrier zones
There is the power switch unit of connection, and use minimum spanning tree (mimimum spanning tree) method
Reconnect the power switch unit of disconnection.
In one embodiment, barrier zones grand can be taken by one or more.
Embodiments of the invention also provide for storing the accessible storage medium of nonvolatile computer of instruction, when
When performing on computers, described instruction: receive the data being associated with IC layout；Determine in IC layout
The power supply area including multiple power switch unit, each power switch unit has input feeder ear, defeated
Go out feeder ear, control input and confirm outfan；Select the power switch unit started；By starting point
The confirmation outfan of power switch unit is connected to the control input of second source switch element；And continue
Connect, until all on and off switch in power supply area are just connected once.
Explained below will provide the character of invention claimed and being best understood from of advantage together with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is can be with exemplary power switch element in an embodiment of the present invention；
Fig. 2 is to have the power switch unit of distribution in grand power supply area according to an embodiment of the invention
Simplified plan view；
Fig. 3 A is the simplified plan view of the daisy chaining connection of on and off switch according to an embodiment of the invention；
Fig. 3 B is the simplified plan view that the E shape mode of on and off switch according to an embodiment of the invention connects；
Fig. 3 C is the simplification plane that the delay E shape mode of on and off switch according to an embodiment of the invention connects
Figure；
Fig. 4 is comprise in one or more grand power domain according to an embodiment of the invention exemplary
The simplified plan view that on and off switch connects；
Fig. 5 A is the simplified plan view of the exemplary connection configuration of on and off switch according to an embodiment of the invention；
Fig. 5 B is the simplified plan view comprising the exemplary electrical source switch connectivity problem in grand power domain；
Fig. 6 A is the exemplary arrangement that the on and off switch the most not stopped connects
Simplified plan view；
Fig. 6 B is another exemplary side that the on and off switch the most not stopped connects
The simplified plan view of case；
Fig. 7 A is according to an embodiment of the invention along the border of the power switch unit array with stop
Find the simplified plan view of the exemplary arrangement of long-chain；
Fig. 7 B is the letter of the exemplary arrangement of the on and off switch connection according to an embodiment of the invention with stop
Change plane graph；
Fig. 7 C is to have another exemplary side that the on and off switch of stop connects according to an embodiment of the invention
The simplified plan view of case；
Fig. 8 A, Fig. 8 B and Fig. 8 C are to be divided into Part I and Part II according to an embodiment of the invention
The exemplary connection of the on and off switch in power switch array；
Fig. 9 is the exemplary plan view of on and off switch method of attachment according to an embodiment of the invention；
Figure 10 is not have the example that the delay E shape of stop connects；
Figure 11 A to Figure 11 E is to have according to an embodiment of the invention wherein to embed grand power switch array
Exemplary plan view；
Figure 12 is performed for the simplified block diagram of the EDA system of the software of the present invention.
Figure 13 depict the integrated circuit that can use embodiments of the invention design and manufacture in simplification show
Example step.
Detailed description of the invention
Certain embodiments of the present invention relates to sequential critical confirmation on and off switch (PSW) connected mode, and
Other embodiments of the invention relate to non-sequential critical confirmation chain PSW connected mode.The basis that the disclosure is accessed
Identification can also be designed alternate manner in the range of invention claimed by the technical staff in field.
Fig. 1 provides can be with exemplary power switch element in an embodiment of the present invention.Such as Fig. 1 institute
Showing, exemplary power switch element can have four terminals I, O, C and A." I " represents that being connected to input supplies
The input power supply terminal of electrical network, " O " represents the output power supply terminal being connected to export power supply network, and " C " represents
It is connected to the control input terminal of control signal, and " A " represents the confirmation outfan being connected to confirmation signal
Son.Power switch unit is opened and closed by control signal.In some embodiments of the invention, input
Power supply network may be coupled to overall situation voltage or power supply, and export power supply network and be connected to another PSW unit
Input power supply terminal I.Confirmation signal follows control signal with certain delay, to indicate power switch unit
On and off.When open, power switch unit provides input power supply network to output power supply network.When
When turning off the power switch unit, do not provide input power supply network to output power supply network.
Power switch unit can be arranged in every way.Such as, power switch unit is generally uniformly distributed
In power domain in IC layout.Fig. 2 is the flat of the voltage regime (or power supply area) 20 of IC design
Face figure.For illustrative purposes, voltage regime 20 is merely exemplary, to represent that voltage regime can be
Any configuration and be not limited to rectangle.With reference to Fig. 2, voltage regime (being alternatively referred to as power domain 20) is wrapped
Include multiple power switch unit 210a, 210b, 210c, 210d, 210e ..., (alternatively and jointly
Ground is referred to as on and off switch or PSW 210) and grand or circuit block 230.Though it is shown that one grand 230,
Understanding, voltage regime 20 can have multiple grand 230, multiple grand 230 and can intersperse among on and off switch.
After placing power switch unit, need to connect power switch control signal and confirmation signal so that control
Signal can travel to all power switch unit.And, in some embodiments, it is desirable to be one really
Recognize (output) signal and be designated as indication signal.Deasserted state or the state of cancelling of indication signal ensure that
Correctly open or close all PSW unit in power domain, and operation the most subsequently can start.
In other situations, then, do not need exist for.The situation wherein needing confirmation signal be defined as " time
Sequence critical confirmation chain ", and the situation that wherein need not confirmation signal is defined as " the critical confirmation of non-sequential
Chain ".This timing requirements or this timing requirements lack the connected mode affecting control signal and confirmation signal.
A. sequential critical confirmation chain PSW connected mode
According to the present invention, three PSW connected modes or configuration are set with connection control signal and confirmation letter
Number so that the output confirmation signal specified can indicate assertorically and correctly open or close in power domain
All on and off switch.
In one embodiment, it is possible to use daisy chaining (configures), input control signal is optional position,
And export confirmation signal and be routed back to the position near input control signal.Fig. 3 A is to illustrate with daisy chain side
The rough schematic view of the PSW that formula is i.e. connected in series, wherein, the control input of a PSW 310a connects
Confirmation outfan to control signal Ctrl and last PSW 310n is connected to confirmation signal ACK.Such as figure
Shown in 3A, daisy chaining connects to have and is placed on any control of (i.e. the same side of power domain) near each other
Signal Ctrl processed and confirmation signal ACK.
In another embodiment, it is possible to use E shape configures, the configuration of this E shape has multiple confirmation signal chain
With the longest confirmation signal chain being routed back to the position near control signal.In this embodiment, the longest confirmation
Chain can remain and confirm chain length n times (n >=1.5), wherein, n than any other in power switch array
For the decimal number more than or equal to 1.5, i.e. n=1.5,1.6,1.7,2.0,2.5,5.0 etc..Fig. 3 B is to show
Go out the rough schematic view of the PSW connected in the E shape mode of n=2.As shown in Figure 3 B, the longest confirmation chain 321
(being represented by heavy line) is two double-lengths confirming chain of thick dashed line 322 instruction, the PSW of long-chain 321
Twice for chain 322 is many.
In yet another embodiment, it is possible to use the E shape configuration of delay.PWS in the E shape configuration postponed
In connection, front several switches 331 to 337 are connected in daisy chain configuration, and remaining PSW unit is even
It is connected on during E shape mode connects, as shown in Figure 3 C.
In certain embodiments, have above-mentioned sequential critical confirmation PSW connected mode can be used to connect
The PSW array of multiple PSW can include one or more grand or circuit block.
In actual IC designs, relatively large such as macroelement is typically distributed in power switch unit array.Figure
4 is to comprise the exemplary electrical source switch in one or more grand power domain according to an embodiment of the invention
The simplified plan view connected.As shown in Figure 4, grand 410,420,430 and 440 be embedded in stop PSW it
Between the power domain 40 of connection.In other words, the connection between power switch unit can not be at block or grand
Route on 410,420,430 and 440.Embodiments of the invention provide new method, not have at block (grand)
Upper operation connects the on and off switch in the configuration of E shape in the case of connecting.The present invention is described below in detail.
B. non-sequential critical confirmation chain PSW connected mode (configuration)
Embodiments of the invention provide the fishbone connected mode (configuration) with minimum spanning tree, with when need not
Generate critical confirmation signal and inform that whether full power switch is connected on and off switch when being closed or opened
Control signal and confirmation signal.
Fig. 5 A is the simplified plan view of the exemplary connection of on and off switch according to an embodiment of the invention.Reference
Fig. 5 A, it is provided that fishbone PSW connects 50.Central horizontal on and off switch forms central authorities' main line 510 (trunk)
And remaining power supply switch is attached to nearest main line, to form branch 511 to 515 (side seam).
In actual IC designs, power switch array generally mixes with grand.Exemplary fish shown in Fig. 5 A
Bone connects and may not work.Fig. 5 B illustrates the example stopping situation.As shown in Figure 5 B, branch's (side seam)
513,514 and 515 are stopped by grand 560.
Some embodiments of the present invention provide for the problems referred to above by using the algorithm that detours based on minimum spanning tree
Scheme.This algorithm can identify the connection on grand, removes them, searches for any neighbouring candidate, and
And select one to connect according to ad hoc rule.
The scheme provided is based on detouring algorithm and can process any amount of piece and any rectilinear form
Block.The program can be by computer automatic execution and need not any user (manual and/or visual) Jie
Enter.Use detours algorithm, can avoid any power switch unit between long connection.This can reduce
DRC hinders and preserves the route resource for routing phase subsequently.
Algorithm
The most do not stop that the E shape in the case of algorithm connects
For not having the E shape stopped to connect, it is simple at the algorithm not having the E shape stopped to connect:
(1) first, long-chain (ginseng is found by the on and off switch in series connection secondary series, last two rows and first row
Thick line 610 according in Fig. 6 A).(2) if remaining power switch unit exists, every from long-chain
Remaining power supply switch element (dotted line 611,612,613 in Fig. 6 A) on the right of the connection of individual on and off switch.According to
Some embodiment, E shape connects can be with pattern based on direction the most i.e. with horizontal direction or to hang down
Nogata is always formed.The direction of E shape configuration is that user is configurable.
B. have and stop that the E shape in the case of algorithm connects
According to the present invention, there is the algorithm that the E shape of stop connects and be segmented into two parts:
Part I: long-chain is found on the border along power switch unit array.Open from control signal input
Begin and pass on the side on and off switch border.Note: this search order will be in dead end (such as sometimes
PSW 751,752,753 in Fig. 7 A), in this case, the power switch unit found incites somebody to action back tracking,
Until finding the next power available switch element (PSW 750,754 in Fig. 7 A) that can pass.
Part I is completed when finding power switch unit 75X being connected to confirmation signal ACK.
Part II: after completing Part I, have identified the longest on and off switch chain (path), will wear
Cross from controlling the long-chain that is input to confirm output, with in the horizontal direction or vertical direction connects and is not connected with
On and off switch, it is that user is configurable.
Fig. 7 B is that wherein PSW has stop with what the configuration of vertical E shape connected
The simplified plan view of exemplary arrangement that connects of on and off switch.
Fig. 7 C is that wherein PSW has stop with what the configuration of horizontal E shape connected
The simplified plan view of another exemplary arrangement that connects of on and off switch.
C. have and arbitrarily control or the daisy chain of confirmation signal
In the following description, the power switch unit of connection control signal is expressed as S, connects confirmation unit
Power switch unit is expressed as T.This kind of on and off switch connects that be referred to as can be
" the Hamiltonian Paths in found in http://www.hindawi.com/journals/jam/2012/475087/
Some Classes of Grid Graphs”。
According to embodiments of the invention, for connecting the side that the method for on and off switch includes dividing and rule in IC
Method.Such as, if the edge of the rectangle net trrellis diagram of rectangle power switch array is less than or equal to 3, then precalculate
The template gone out is for realizing connection.Otherwise, strip operation or fractured operation will be used for reducing problem repeatedly
Scale.Strip operation can in the following manner in any one perform:
Strip operation A: whole power switch array is divided into two parts, and wherein, S and T is positioned at identical portions
In Fen.For another part, easily derive Han Midun circulation, once can solve both sides, can easy group
Close two parts, to generate the Han Midun path from S to T.Fig. 8 A is along separating 83 points of (division) line
That split, be divided into the exemplary power switch arrays of Part I 81 and Part II 82.Control signal S and
Confirmation signal T is positioned at same section 81.Daisy chain is defined in Part I 81.The input of daisy chain is
S and daisy chain are output as T.Han Midun circulates in Part II 82 and performs.Then, Part I 81
In, be chosen as output switching element (such as switch element 811a) along the on and off switch of defiber 83,
And adjacent power switch unit 811b along defiber 83 is chosen as input block.In like manner, close
It is single that power switch unit in the Part II 82 along defiber 83 of output unit 811a is chosen as input
Unit (such as input block 821a), and near the Part II along defiber 83 of input block 811a
Power switch unit in 82 is chosen as output unit 821b.Disconnect two adjacent lists in Part I 81
Unit 811a, the connection between 811b.In like manner, two the adjacent cells 821a, 821b in Part II 82 are disconnected
Between connection.The most i.e. by connecting output unit 811a to input block 821a and connecting output unit
821a to input block 821b combines two parts 81,82, to form Han Midun path, as shown in Figure 8 B.
Strip operation B: whole power switch array is divided into two parts, and wherein, S and T is not positioned at identical
In part.Fig. 8 C divides along divisural line 87, is divided into showing of Part I 85 and Part II 86
Example power switch array.To select that there is output switching element 851 and input switch list along divisural line 87
Candidate's on and off switch pair of unit 861.Output switching element 851 is positioned in the part that S exists, and inputs
Switch element 861 is positioned in the part that T exists.Obtain for the daisy-chained path of each part, and so
After link together, as shown in Figure 8 C.
D. there is a daisy chain with any control signal or confirmation signal stopped
For having a daisy chain stopped, on and off switch matrix is divided into multiple near stopping
Part, and select the input power switch for each part being partitioned into or out-put supply switch, so
Afterwards as described in part C, use and not there is the daisy chain stopping algorithm, to connect on and off switch.Fig. 9
It it is the exemplary plan view of on and off switch method of attachment according to an embodiment of the invention.As it is shown in figure 9, it is electric
Source switch array 90 has grand 91 arranged in power switch array.Power switch array 90 is divided into
The block 92,93,94,95 and 96 that grand 91 are disposed about.Control signal S and confirmation signal T quilt in each piece
Identify.In each piece, form daisy chain, and between two adjacent blocks, determine that candidate is to S and T.Cause
On and off switch connect Han Midun path as shown in Figure 9.
E. have and stop algorithm or not there is the delay E shape connection stopping algorithm
For connecting for the E shape postponed, first, daisy chaining is used for connecting (the vacation of front several on and off switch
If there is not stop), then E shape connects and stops that algorithm is used together, to obtain remaining connection.Figure 10
It it is the example of the E shape connection of the delay without stop according to the present invention.
F. the algorithm that detours based on minimum spanning tree
According to some embodiments of the present invention, the algorithm that detours being automatically based upon minimum spanning tree can include following
Three steps:
(1) connect on and off switch first by traditional method: determine central backbone, connect remaining power supply
Switch is to central backbone.Note that if placing the grandest between two power switch unit connected,
Then this step is introduced into long connection.
(2) it follows that calculate the on and off switch of any connection between connection distance.If a connection
Distance more than normal distance, then can detect exceptional value.Then connect owing to these are long and represent on macroelement
Connection, long connect so disconnecting these.Then whole power switch unit is divided into several disconnection group.Base
Building figure in these disconnection groups, wherein, each node represents a group, and each edge represents every
Detour connection to the candidate between group.The suitable weight for this figure is distributed to each edge.
(3): on this figure, perform minimal spanning tree algorithm, and come really according to the minimum spanning tree calculated
Fixed last connection.
Example
Example 1: Figure 11 A is the exemplary plan view wherein embedding grand power switch array.In step (1)
In, determine central backbone (main bone) 1210, and branch's (side seam) 1211,1212,1213,1214,1215
It is connected to central backbone 1210.
In step (2): the long connection detecting and disconnecting between every pair of on and off switch connected.Whole power supply
Switch element is divided at grand three groups be disposed about: G1, G2 and G3.Then formed between every pair of group is any
Candidate connects.Such as, formed between group G1 and G2 and connect 11a, 11b, shape between group G2 and G3
Become and connect 11c, 11c, and between group G1 and G3, form connection 11e, 11f, as shown in Figure 11 B.
In step (3), run minimum spanning tree for the figure in step 2, and finally connected,
Wherein, connect 11a and group G1 is connected to G2, and connect 11c and group G2 is connected to G3, such as Figure 11 C
Shown in.
Example 2: Figure 11 D is the example plan view of the power switch array wherein embedding macroelement 11D.?
In step (1) and (2), whole power switch unit is divided into 4 be disposed about at macroelement 11D
Group G1 to G4, and between group G1 to G4, set up each candidate connection.Candidate is connected in Figure 11 D
It is shown as 111a, 111b, 111c and 111d.
In step (3): use minimum spanning tree to apply the figure generated after step 1 and step 2.Make
On and off switch for result is connected to shown in Figure 11 E.
Figure 12 is the code can being programmed to perform for connecting up IC according to an embodiment of the invention
Calculate equipment 1200 simplified block diagram.Shown as, calculating equipment 1200 includes: have one or many
The processor of individual processing unit, system storage, static storage cell (hardware driving), display unit (LCD),
Input equipment (keyboard, mouse, CD or magnetic tape reader etc.).Calculating equipment 1200 also includes network
Interface unit, this NIU is configured to LAN, wide area network or wireless network and will calculate
Equipment is connected with miscellaneous equipment.In an embodiment, display unit have the power domain for showing IC layout or
One or more window of person's voltage domain.Embodiments of the invention provide for connecting power supply in IC layout
The method of switch.
The embodiment provides multiple advantage: may include that and configure such as Flos Chrysanthemi based on various connections
Chain, fishbone, E shape are from the on and off switch being dynamically connected in (route) power domain.User can be filled by input
Put and configure the connection of E shape with horizontal direction or vertical direction.According to embodiments of the invention, eda tool is complete
Become to have grand, had that one grand or the connection of on and off switch in multiple grand power domain.
Function that calculating equipment shown in Figure 12 performs and algorithm may include that and determine and include that multiple power supply is opened
Close unit power supply area, each power switch unit have input feeder ear, export feeder ear, control defeated
Enter end and confirm outfan, selecting the power switch unit started, by the power switch unit of starting point really
Recognize outfan and be connected to the control input of second source switch element, and continue to connect until just connecting
Till the most all on and off switch.
Figure 13 depict the integrated circuit that can use embodiments of the invention design and manufacture in simplification show
Example step.This process starts from product concept 1300, and it uses electric design automation (EDA) software
1310 realize.Chip 1370 can by perform to manufacture 1350 and encapsulation and assembling 1360 steps and from
After design produce.It is for illustration purposes only, describes below and use the exemplary of eda software 1310
Design cycle.Such as, actual IC design can need designer to be different from sequence described below
Different sequences perform design cycle step.
In system design 1312, designer describes function to be achieved.Designer can also perform to assume to divide
Analysis plan, to improve function and check cost.Further, software-hardware framework subregion occurs in this step.
In Design and Features checking 1314, for function degree of accuracy, can create and check hardware description language
(HDL) design.
In comprehensive Design 1316, HDL code can change into netlist, can optimize for object technology
This netlist.It is possible to further design and realization test, with the chip checked.1318 are verified in netlist
In, can be according to temporal constraint and meet HDL code to check netlist.In design planning 1320, can
Build and analyze the whole plane graph for chip to route for sequential and top layer.It follows that at physics
Realize in 1322, can perform to arrange and route.
Analyzing and extracting in 1324, circuit function can verified with transistor level.At physical verification 1326
In, design can be checked, to correct any function, manufacture, electronics or the problem of photoetching.?
Resolution strengthens in 1328, can perform geometric operation in layout, to improve the manufacturing of design.Finally,
In mask data prepares 1330,1340 designs of can rolling off the production line for the production of mask, to have produced
Chip.Embodiments of the invention can be used for example in design planning 1320 and/or the step of physics realization 1322
Suddenly.
Each embodiment of the present invention can be come real with the logical form of software or hardware or combination
Existing.Logic can perform disclosed in embodiments of the invention as the processor being suitable for instructing computer system
The instruction set of set of steps and be stored in computer-readable or machine-readable storage medium.Logic
Can form a part for computer program, this part is suitable for tutorial message processing means and performs this
The bright set of steps disclosed in embodiment.Based on disclosure provided herein and religious doctrine, this area
Skilled artisan will appreciate that alternate manner and/or method are to realize the present invention.
Therefore, specification and drawings is considered as illustrative and not restrictive.Then, it is thus evident that
Can without departing from the present invention broad spirit and false proof such as claims in the case of the scope that is given right
Various modifications and variations can be made for it.Additionally, the technology of the present invention and system be suitable for for designing, testing
And/or manufacture integrated circuit or the various eda tools of other electronic installations and method is used together.Therefore,
The scope of the present invention should not determine with reference to being described above but should refer to claims together with them
Four corner or equivalent determine.
Claims (15)
1. for connecting a computer implemented method on and off switch, institute in integrated circuit (IC) layout
State computer implemented method to include:
Determine that the power supply area including multiple power switch unit, each power switch unit have input power supply
End, output feeder ear, control input and confirmation outfan；
Select the power switch unit started；
By the power switch unit of starting point to confirm that outfan is connected to the control of second source switch element defeated
Enter end；And
Continue to connect until all on and off switch are just connected once.
Computer implemented method the most according to claim 1, wherein, by the on and off switch list of starting point
The input feeder ear of unit is connected to power supply, and is connected by the confirmation outfan of the power switch unit of starting point
Control input to second source switch element.
Computer implemented method the most according to claim 1, wherein, the power switch unit of starting point
Control input be configured to receive control signal, and the power switch unit of end point gives up really
End is configured to export confirmation signal.
Computer implemented method the most according to claim 1, wherein, power switch unit is with daisy chain
The configuration of configuration, fishbone configuration, the configuration of E shape or its every combination connects.
Computer implemented method the most according to claim 4, wherein, the configuration of E shape includes multiple confirmation
Signal chains, wherein, the quantity of the power switch unit that the longest confirmation signal chain includes is that any other confirms
At least N times of the quantity of the power switch unit in signal chains, N >=1.5.
Computer implemented method the most according to claim 4, wherein, E shape is configured to user configured.
Computer implemented method the most according to claim 4, wherein, fishbone configuration includes: include electricity
The main bone of the main daisy chain of source switch unit and the side seam of the opposite side layout at main bone, each side seam is connected to
Main bone.
Computer implemented method the most according to claim 7, wherein, also includes:
Determine whether barrier zones is present in one or more side seam；
In the case of barrier zones is present in one or more side seam:
Disconnect the power switch unit on barrier zones with connection；
Minimum spanning tree method is used to reconnect the power switch unit being disconnected.
Computer implemented method the most according to claim 8, wherein, barrier zones is taken by grand.
10. store the accessible storage medium of nonvolatile computer of instruction, hold when on computers
During row, described instruction:
Receive the data being associated with IC layout；
Determining the power supply area including multiple power switch unit in IC layout, each power switch unit has
There are input feeder ear, output feeder ear, control input and confirm outfan；
Select the power switch unit started；
By the power switch unit of starting point to confirm that outfan is connected to the control of second source switch element defeated
Enter end；And
Continue to connect, until all on and off switch in power supply area are just connected once.
The 11. accessible storage mediums of nonvolatile computer according to claim 10, wherein, power supply
Switch element configures with daisy chain, the configuration of fishbone configuration, the configuration of E shape or its every combination connects.
The 12. accessible storage mediums of nonvolatile computer according to claim 11, wherein, fishbone
Configuration includes: include the main bone of the main daisy chain of power switch unit and the side seam of the opposite side layout at main bone,
Each side seam is connected to main bone.
The 13. accessible storage mediums of nonvolatile computer according to claim 12, wherein, when holding
During row, instruction:
Determine whether barrier zones is present in one or more side seam；
Determining in the case of barrier zones is present in one or more side seam:
Disconnect the power switch unit on barrier zones with connection；
Minimum spanning tree method is used to reconnect the power switch unit being disconnected.
Power supply area in 14. 1 kinds of IC layouts, described power supply area includes:
Including the power switch array of multiple power switch unit, each power switch unit has input power supply
End, output feeder ear, control input and confirmation outfan；
Wherein, the on and off switch in power supply area is just connected once.
15. power supply areas according to claim 14, wherein, power switch unit with daisy chain configure,
The configuration of fishbone configuration, the configuration of E shape or its every combination connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510335206.4A CN106257464B (en) | 2015-06-16 | 2015-06-16 | Method for connecting power switches in an IC layout |
Applications Claiming Priority (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888038A (en) * | 2018-09-11 | 2020-03-17 | 中芯国际集成电路制造(上海)有限公司 | Standard unit test circuit layout, optimization method thereof and standard unit test structure |
| CN114492290A (en) * | 2022-04-06 | 2022-05-13 | 飞腾信息技术有限公司 | Power switch planning method, device, equipment and storage medium of chip |
| CN117077608A (en) * | 2023-08-22 | 2023-11-17 | 北京市合芯数字科技有限公司 | Connection method and device of power switch unit, electronic equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5922442A (en) * | 1982-07-29 | 1984-02-04 | Internatl Rectifier Corp Japan Ltd | Driving controller of semiconductor switching element |
| CN101228692A (en) * | 2005-07-25 | 2008-07-23 | Arm有限公司 | Power control integrated circuit unit |
| CN101309015A (en) * | 2007-05-16 | 2008-11-19 | 日立车辆能源株式会社 | Cell controller, battery module and power supply system |
| US7791406B1 (en) * | 2006-04-04 | 2010-09-07 | Marvell International Ltd. | Low leakage power management |
| CN102480232A (en) * | 2010-11-30 | 2012-05-30 | 永济新时速电机电器有限责任公司 | Single-ended flyback switching power supply and control device thereof |
-
2015
- 2015-06-16 CN CN201510335206.4A patent/CN106257464B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5922442A (en) * | 1982-07-29 | 1984-02-04 | Internatl Rectifier Corp Japan Ltd | Driving controller of semiconductor switching element |
| CN101228692A (en) * | 2005-07-25 | 2008-07-23 | Arm有限公司 | Power control integrated circuit unit |
| US7791406B1 (en) * | 2006-04-04 | 2010-09-07 | Marvell International Ltd. | Low leakage power management |
| CN101309015A (en) * | 2007-05-16 | 2008-11-19 | 日立车辆能源株式会社 | Cell controller, battery module and power supply system |
| CN102480232A (en) * | 2010-11-30 | 2012-05-30 | 永济新时速电机电器有限责任公司 | Single-ended flyback switching power supply and control device thereof |
Non-Patent Citations (2)
| Title |
|---|
| XIAOFEI WANG 等: "A daisy-chain SPI interface in a battery voltage monitoring IC for electric vehicles", 《2014 12TH IEEE INTERNATIONAL CONFERENCE ON SOLID-STATE AND INTEGRATED CIRCUIT TECHNOLOGY (ICSICT)》 * |
| 姜岩峰 等: "基于模拟IP核的开关电源管理集成电路设计方法探讨", 《北方工业大学学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888038A (en) * | 2018-09-11 | 2020-03-17 | 中芯国际集成电路制造(上海)有限公司 | Standard unit test circuit layout, optimization method thereof and standard unit test structure |
| CN110888038B (en) * | 2018-09-11 | 2021-12-14 | 中芯国际集成电路制造(上海)有限公司 | Standard unit test circuit layout, optimization method thereof and standard unit test structure |
| CN114492290A (en) * | 2022-04-06 | 2022-05-13 | 飞腾信息技术有限公司 | Power switch planning method, device, equipment and storage medium of chip |
| CN117077608A (en) * | 2023-08-22 | 2023-11-17 | 北京市合芯数字科技有限公司 | Connection method and device of power switch unit, electronic equipment and storage medium |
| CN117077608B (en) * | 2023-08-22 | 2024-02-27 | 北京市合芯数字科技有限公司 | Connection method and device of power switch unit, electronic equipment and storage medium |
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