CN106301340B - Feed-through signal transmitting device/method and related feed-through signal transmission circuit - Google Patents
Feed-through signal transmitting device/method and related feed-through signal transmission circuit Download PDFInfo
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- CN106301340B CN106301340B CN201610482065.3A CN201610482065A CN106301340B CN 106301340 B CN106301340 B CN 106301340B CN 201610482065 A CN201610482065 A CN 201610482065A CN 106301340 B CN106301340 B CN 106301340B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
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Abstract
The present invention provides a kind of feed-through signal transmitting device/method and related feed-through signal transmission circuit.Feed-through signal transmitting device includes multiple feed-through signal transmission circuits, wherein each feed-through signal transmission circuit includes an at least sub-circuit, wherein when sub-circuit executes feed-through signal transmission, sub-circuit is maintained at power-up state, and the sub-circuit includes to be used for the normally opened repeater of feedthrough and normal open control element, when sub-circuit executes feed-through signal transmission, the power-up state of sub-circuit is maintained；Multiple sub-circuits of plurality of feed-through signal transmission circuit are located at multiple positions based on grid of the chip area of single silicon.Feed-through signal transmitting device/method of the invention and related feed-through signal transmission circuit can power off on demand, greatly reduction electricity leakage power dissipation.
Description
[technical field]
Disclosed herein embodiment about signal circuit, device and method, in particular to using
The feedthrough (feedthrough) of at least one normally opened buffer and the changeable normal buffer that can be selectively powered off is believed
Number transmission circuit and device and method.
[background technique]
Feedthrough is for carrying leading for signal by printed circuit board (printed circuit board, be abbreviated as PCB)
Body.Feedthrough can be divided into power supply and instrument class, and wherein power supply feedthrough is used for high-current carrying or high voltage, and instrument and meter
Class feedthrough is used to carry usually low current or the electric signal of low-voltage.
Referring to FIG. 1, Fig. 1 is the schematic diagram of the feedthrough in the circuit design of foundation background technique.As shown in Figure 1, circuit
System 100 includes three circuits 10,20,30, is belonging respectively to different subregions/block/power domain.When circuit 20 transmits a signal to electricity
Road 10 or from circuit 10 receive signal when, these signals are had to through the point road 30 between circuit 10 and 20.Because of the reason,
Circuit 30 must not be not designed to normally opened (permanently on) type；Otherwise, the signal transmission between circuit 10 and 20 can
It can failure.If circuit 30 powers off, circuit 20 cannot be transferred to signal in circuit 10 or receive signal from circuit 10.However,
Power consumption will be increased using the element of open type.Specifically, reception block after source block and feed-through circuits before feed-through circuits
When (sink block) is powered off, feed-through circuits will continue to power, this inevitably leads to leakage power.Accordingly it is desirable to one
The feed-through circuits design of kind innovation, uses the element of open type, but the circuit can be powered down.
[summary of the invention]
Exemplary embodiment according to the present invention proposes a kind of feed-through signal transmitting device/method and related feedthrough letter
Number transmission circuit is to solve the above problems.
One embodiment according to the present invention proposes a kind of feed-through signal transmitting device, is made on single silicon, comprising more
A feed-through signal transmission circuit, each feed-through signal transmission circuit in plurality of feed-through signal transmission circuit include at least one
Sub-circuit, wherein sub-circuit is maintained at power-up state, and sub-circuit includes for presenting when sub-circuit executes feed-through signal transmission
Repeater and a normal open control element are usually opened, multiple feed-through signal transmission circuits are coupled to, when sub-circuit executes feedthrough letter
Number transmission when, maintain the power-up state of sub-circuit；Multiple sub-circuits of plurality of feed-through signal transmission circuit are located at single silicon
Chip area multiple positions based on grid.
Another embodiment according to the present invention proposes a kind of feed-through signal transmission method, is used for feed-through signal transmitting device,
Wherein feed-through signal transmitting device is made on single silicon, and feed-through signal transmission method includes transmission of control signals to normally opened control
Element, wherein feed-through signal transmitting device includes multiple feed-through signal transmission circuits and normal open control element；And according to control
Signal processed is kept in multiple feed-through signal transmission circuits when sub-circuit executes feed-through signal transmission using normal open control element
At least sub-circuit of each in power-up state；Multiple sub-circuits of plurality of feed-through signal transmission circuit are located at single
Multiple positions based on grid of the chip area of silicon.
Another embodiment according to the present invention proposes that a kind of feed-through signal of foundation such as feed-through signal transmission method operation passes
Transmission of electricity road, wherein feed-through signal transmission circuit is one of multiple feed-through signal transmission circuits.
Feed-through signal transmitting device/method of the invention and related feed-through signal transmission circuit can power off on demand, greatly
Reduce electricity leakage power dissipation.
[Detailed description of the invention]
Fig. 1 is the schematic diagram of the feedthrough in the circuit design according to prior art.
Fig. 2 is the schematic diagram of the feed-through signal transmission circuit of first embodiment according to the present invention.
Fig. 3 is the schematic diagram of the feed-through signal transmission circuit of second embodiment according to the present invention.
Fig. 4 illustrates the scene of the first example using feed-through signal transmission circuit as shown in Figure 3.
Fig. 5 illustrates the scene of the second example using feed-through signal transmission circuit as shown in Figure 3.
Fig. 6 illustrates the scene of the third example using feed-through signal transmission circuit as shown in Figure 2.
Fig. 7 illustrates the scene of the 4th example using feed-through signal transmission circuit as shown in Figure 3.
Fig. 8 is the schematic diagram of the feed-through signal transmission circuit of 3rd embodiment according to the present invention.
Fig. 9 is the schematic diagram of the Partial Mesh position on the chip area of some embodiments according to the present invention.
Figure 10 is the schematic diagram of the Partial Mesh position on the chip area of another embodiment according to the present invention.
Figure 11 is the schematic diagram of grid position of the part with offset on chip area according to an embodiment of the present invention.
Figure 12 be according to the present invention the part on the chip area of another embodiment have offset grid position signal
Figure.
Figure 13 be according to the present invention the part on the chip area of another embodiment have offset grid position signal
Figure.
[specific embodiment]
Some vocabulary is used in specification and claims to censure specific component.Skill in fields
Art personnel are, it is to be appreciated that manufacturer may call same component with different nouns.Present specification and claims
Not in such a way that the difference of title is as component is distinguished, but with the difference of component functionally as the base of differentiation
It is quasi-.In the whole text specification and claims when mentioned in "comprising" be open term, therefore should be construed to " include but
It is not limited to ".In addition, " coupling " word includes any direct and indirect electrical connection herein.Therefore, if it is described herein that
First device is coupled to second device, then second device can be directly electrically connected in by representing first device, or penetrate other devices
Or connection means are electrically connected indirectly to second device.
Referring to FIG. 2, its schematic diagram for the feed-through signal transmission circuit 200 of first embodiment according to the present invention.Feedthrough
Signal circuit 200 includes multiple normally opened elements 210,250 (being also marked as ' PBUF '), element controi unit 220 and more
A repeater 230_1-230_N (being also marked as ' ISO ').Normally opened element 210 receives and sends the first voltage input PWR_CON.
Normally opened element 250 receives and sends the second voltage input ISO_CON.It note that i.e. convenient power domain (feed-through signal transmission circuit
200 regions) in the power supplies of other logic elements be closed, normally opened element 210,250 still keeps active (active).?
In the embodiment, normally opened element 210 and 250 is not used to serve as feedthrough buffer.On the contrary, common buffer is used as presenting
Logical buffer.
It as shown in Fig. 2, element controi unit 220 is coupled to normally opened element 210, and include that power switch 222 (is also expressed
For ' SW ') and multiple buffer 224_1-224_N (being also represented as ' BUF '), wherein buffer 224_1-224_N is with commonly
Buffer is realized for use as feedthrough buffer.It note that the value of N can be for any positive integer, depending on actual design demand/examine
Amount.Power switch 222 is coupled to normally opened element 210, the first control signal PWR_CON received from the transmission of normally opened element 220.The
One control signal PWR_CON is used as switch control signal.Power switch 222 is with reference to first control signal PWR_CON selectivity
Conduction/output power supply signal PWR.For example, but simultaneously non-present invention limits, and power switch 222 can utilize the complementary gold of multi-threshold
Belonging to oxide semiconductor, (multi-threshold complementary metal-oxide-semiconductor, is abbreviated as
MTCMOS) transistor is realized.In the present embodiment, using (coarse-grained) power gating topology (power of coarseness
gating topology).To which whether voltage/power level of first control signal PWR_CON determines MTCMOS transistor
Conducting is come for being provided to buffer 224_1-224_N for power supply signal PWR.Since buffer 224_1-224_N is not normally opened
Buffer, each of buffer 224_1-224_N by only when by from power switch 222 power supply signal PWR power when,
Cache corresponding data input.For example, when being powered signal PWR power supply, the data cached input of buffer 224_1-224_N
DIN_1-DIN_N simultaneously generates corresponding data output OUT_1-OUT_N respectively.
In this embodiment, the output port of each of buffer 224_1-224_N is coupled to repeater 230_1-
One of 230_N, wherein repeater 230_1-230_N is controlled by the second control signal ISO_CON transmitted from normally opened element 250.
For example, second control signal ISO_CON control repeater 230_1-230_N whether be used for signal relaying or for signal every
From.
It note that the schematic diagram while figure 2 show that multiple common buffers and multiple repeaters, feed-through signal transmission electricity
Road 200 can be configured to or be revised as only have a common buffer and a single repeater.
Element controi unit 220 is configured in a manner of coarseness.One single power supply switch is responsible for the multiple buffers of control
Power supply.When there are data-signals to need through feed-through signal transmission circuit 200, when being sent to another domain from a domain, the
One control signal PWR_CON is arranged to turn on the power switch 222, so that feedthrough buffer (that is, buffer 224_1-224_N)
It powers on.In addition, second control signal ISO_CON is provided so that repeater 230_1-230_N promotes (boost) data-signal
Intensity, so as to will not decay from the data-signal that buffer 224_1-224_N is sent to lower single order feed-through signal transmission circuit.When
There is no data-signals to need through feed-through signal transmission circuit 200, when being sent to another domain from a domain, the first control
Signal PWR_CON is set to off power switch 222, so that feedthrough buffer (that is, buffer 224_1-224_N) powers off.
In addition, second control signal ISO_CON may be set so that the letter that repeater 230_1-230_N is isolated between two power domains
Number.Compared with traditional feedthrough design, the feedthrough buffer (that is, buffer 224_1-224_N) of feedthrough design of the invention is permitted
Perhaps it powers off.In this way, electricity leakage power dissipation effectively can be alleviated and reduce.
It note that repeater 230_1-230_N and normally opened element 250 be optional element.In an optional design, feedback
Messenger transmission circuit 200 can be modified under the premise of without departing from the spirit of the present invention, omit repeater 230_1-230_N
With normally opened element 250.Fig. 3 is the schematic diagram of the feed-through signal transmission circuit 300 of second embodiment according to the present invention.In this implementation
In example, feed-through signal transmission circuit 300 includes above-mentioned normally opened element 210 and element controi unit 220, and realizes that power-off feedthrough is slow
It rushes device and reaches the same target for effectively alleviating/reducing electricity leakage power dissipation.
Fig. 2/feed-through signal shown in Fig. 3 transmission circuit 200/300 can be used in different scenes.It is provided below several
Example, with explaining.
Referring to FIG. 4, Fig. 4 illustrates the scene of the first example using feed-through signal transmission circuit as shown in Figure 3.Feedback
Messenger transmission circuit 300 is coupled to two normally opened piece between 402 and 404.To understand for purpose of brevity, feed-through signal transmission circuit
A buffer is shown only in 300.It note that shadow region represents the domain closed, and non-hatched area represents energization domain.?
In the scene, repeater is not needed.
Referring to FIG. 5, Fig. 5 illustrates the scene of the second example using feed-through signal transmission circuit as shown in Figure 3.Feedback
Messenger transmission circuit 300 is coupled between normally opened piece 502 and another feed-through signal transmission circuit 504, and wherein feed-through signal passes
Transmission of electricity road 504 also can have above-mentioned element controi unit 220 and be implemented within.To understand that for purpose of brevity, feed-through signal passes
Transmission of electricity shows only a buffer in road 300.It note that shadow region represents the domain closed, and non-hatched area represents and leads to
Electrical domain.In this scenario, the output port of each of buffer 224_1-224_N is coupled to repeater 506, wherein relaying
Device 506 is located in the feed-through signal transmission circuit 504 for following feed-through signal transmission circuit 300.
Referring to FIG. 6, Fig. 6 illustrates the scene of the third example using feed-through signal transmission circuit as shown in Figure 2.Feedback
Messenger transmission circuit 200 is coupled between another feed-through signal transmission circuit 602 and normally opened piece 604, and wherein feed-through signal passes
Transmission of electricity road 602 also can have above-mentioned element controi unit 220 and be implemented within.To understand that for purpose of brevity, feed-through signal passes
Transmission of electricity shows only a buffer in road 200.It note that shadow region represents the domain closed, and non-hatched area represents and leads to
Electrical domain.In this scenario, the input port of each of buffer 224_1-224_N is coupled to repeater 606, wherein relaying
Device 606 is located in the feed-through signal transmission circuit 602 before feed-through signal transmission circuit 200 is arranged in.
Referring to FIG. 7, Fig. 7 illustrates the scene of the 4th example using feed-through signal transmission circuit as shown in Figure 3.Feedback
Messenger transmission circuit 300 is coupled between two feed-through signal transmission circuits 704 and 704, wherein feed-through signal transmission circuit
Each of 704 and 704, which also can have above-mentioned element controi unit 220, is implemented within.To understand feedback for purpose of brevity
A buffer is shown only in messenger transmission circuit 300.It note that shadow region represents the domain closed, and nonshaded area
Domain represents energization domain.In this scenario, the input port of each of buffer 224_1-224_N is coupled to repeater 706,
Wherein repeater 706 is located in the feed-through signal transmission circuit 702 before feed-through signal transmission circuit 300 is arranged in, and buffers
The output port of each of device 224_1-224_N is coupled to repeater 708, and wherein repeater 708, which is located at, follows feedthrough to believe
In the feed-through signal transmission circuit 704 of number transmission circuit 300.
In above-mentioned each example scene, due to feedthrough buffer can according to actual demand under the control of power switch quilt
Power-off, the power consumption of feed-through signal transmission circuit can be greatly reduced.
As described above, Fig. 2 and embodiment shown in Fig. 3 are using coarseness power gating topology.The identical concept of the present invention
It can also be used for the feed-through signal transmission circuit with fine granularity (fine-grained) power gating topology.Referring to FIG. 8, it is
The schematic diagram of the feed-through signal transmission circuit 800 of 3rd embodiment according to the present invention.Feed-through signal transmission circuit 800 includes multiple
Normally opened element 810_1-810_N (being also marked as ' PBUF ') and element controi unit 820, wherein element controi unit 820 wraps
It (is also marked as containing multiple power switch 822_1-822_N (being also marked as ' SW ') and multiple buffer 824_1-824_N
‘BUF').For example, but simultaneously non-present invention limits, and each of power switch 822_1-822_N is using a MTCMOS
Transistor is realized.Buffer 824_1-824_N is common buffer, is used as feedthrough buffer.Due to element controi unit 820 with
Fine granularity mode configures, and multiple power switches (that is, 822_1-822_N) are respectively by multiple control signal (that is, by normally opened element
The PWR_CON_1-PWR_CON_N that 810_1-810_N is transmitted) control, and multiple power switches (that is, 822_1-822_N) point
The power supply PWR of multiple buffers (that is, 824_1-824_N) Fu Ze not controlled.The behaviour of each normally opened element 810_1-810_N
Make and function is identical as normally opened element 210；The operations and functions of each power switch 822_1-822_N and 222 phase of power switch
Together；And the operations and functions of each buffer 824_1-824_N are identical as each of buffer 224_1-224_N.Buffering
The mode of operation of each of device 824_1-824_N switchs independent control by corresponding power.Due to using normal buffer
The feedthrough buffer of realization can be powered down as needed, and the identical target for reducing the leakage power consumption of feed-through signal transmission circuit obtains
To realize.
In example shown in Fig. 8, repeater is not included in feed-through signal transmission circuit 800.This is only used as purposes of discussion.
In an alternative design, feed-through signal transmission circuit 800 can be modified to include above-mentioned repeater 230_1- shown in Fig. 2
230_N, and the alternative design also belongs to the scope of the present invention.
Some embodiments according to the present invention are manufactured in integrated circuit (integrated circuit, be abbreviated as IC) (example
Such as, single silicon) on feed-through signal transmitting device may include multiple feed-through signal transmission circuits, the transmission of plurality of feed-through signal
A feed-through signal transmission circuit in circuit is (for example, each feed-through signal in multiple feed-through signal transmission circuits transmits electricity
Road, each feed-through signal transmission circuit in a part of multiple feed-through signal transmission circuits) it may include at least one sub-circuit
(for example, one or more sub-circuits) is when the sub-circuit executes feed-through signal transmission, which is maintained at power-up state.
To which an above-mentioned at least sub-circuit can be maintained at power-up state and transmit for feed-through signal.For example, when feed-through signal passes
When the power supply of certain other parts is closed in transmission of electricity road, an above-mentioned at least sub-circuit can be maintained at power-up state for feedthrough
Signal transmission.For by way of further example, regardless of whether the power supply of certain other parts in feed-through signal transmission circuit can be closed, on
Power-up state can be maintained at for feed-through signal transmission by stating an at least sub-circuit.Again for example, it transmits and fills when feed-through signal
When setting operation (for example, the power supply of feed-through signal transmitting device is not turned off), an above-mentioned at least sub-circuit can be kept always
It is transmitted in power-up state for feed-through signal.
No matter whether the power supply of an above-mentioned at least sub-circuit can independently be opened or closed, and no matter the feed-through signal passes
Whether the power supply of certain other parts on transmission of electricity road can independently be opened or closed, and above-mentioned at least a sub-circuit can be when needed
(for example, transmitting for feed-through signal) is maintained at power-up state.More particularly, an above-mentioned at least sub-circuit may include at least
One repeater (for example, one or more repeaters), (for example, transmitting for feed-through signal), which can be maintained at, when needed powers on
State.For example, when an above-mentioned at least sub-circuit executes feed-through signal transmission, an above-mentioned at least repeater can be maintained at
Power-up state is transmitted for feed-through signal.It is passed since an above-mentioned at least repeater can be maintained at power-up state for feed-through signal
Defeated, an above-mentioned at least repeater is referred to alternatively as at least one for the normally opened repeater of feedthrough (permanently on-for-
feedthrough).Above-mentioned at least one may include for the example of the normally opened repeater of feedthrough, but be not limited to, common buffer (example
Such as, the buffer powered by the power supply signal exported certainly in such as above-mentioned power switch, or opened without using such as above-mentioned power supply
Close by the buffer of normal power supply), normally opened buffer is (as long as example, the operation of feed-through signal transmitting device, is delayed by permanently on
Rush device) etc..In addition to multiple feed-through signal transmission circuits, feed-through signal transmitting device, which can further include, is coupled to multiple feedthrough letter
The normal open control element of number transmission circuit.For example, which can be configured to when an above-mentioned at least sub-circuit
When executing feed-through signal transmission, the power-up state of an above-mentioned at least sub-circuit is maintained.
Any one that note that feed-through signal transmission circuit 200 or feed-through signal transmission circuit 300 can be used as this feedback
The example of messenger transmission circuit.For example, the feed-through signal transmission circuit in multiple feed-through signal transmission circuits can wrap
Containing (for brevity, being referred to as " for electric island ") for electric island (power island) circuit, and this can for electric island circuit
Comprising an at least power switch (for example, one or more power switches), and can further include by an above-mentioned at least power switch control
Multiple repeaters of system, such as reverser under one group of buffer or one group of same polarity is to (inverter pair), for will
The signal source of signal from a power domain is sent in the signal receiver (signal sink) of another power domain.By it is above-mentioned extremely
The example of the repeater of few power switch control may include, but be not limited to, multiple buffer 224_1-224_N shown in Fig. 2,
And multiple buffer 824_1-824_N shown in Fig. 8, wherein each element controi unit shown in any one of Fig. 2-3
220, the relevant element controi unit in any embodiment being respectively shown in Fig. 4-7 and element shown in Fig. 8 control are single
Member 820 can be considered as the example for electric island circuit.Using multiple buffer 224_1-224_N as the example of multiple repeaters, by
May be embodied as in each of multiple buffer 224_1-224_N it is more much smaller than normally opened buffer (or normally opened element), and
And due to multiple buffer 224_1-224_N can share some common structures (for example, for electric island circuit public wiring and
Boundary isolation structure), for implementing the chip area of multiple buffer 224_1-224_N than the N number of normally opened buffer of implementation
Small more of chip area.In some embodiments, when required, feed-through signal transmission circuit may include more than one for electric island
Circuit.For example, in the case that the distance between signal source and signal receiver is long, feed-through signal transmission circuit may include
It is multiple for electric island circuit, couple and come (for example, one is coupled to another) and form signal between signal source and signal receiver
Transmission path.
Some embodiments according to the present invention, the son of one group of feed-through signal transmission circuit in multiple feed-through signal transmission circuits
Circuit, for example, this group of feed-through signal transmission circuit for electric island circuit, can be located separately the chip area of IC (for example, single silicon
Chip area) on multiple positions based on grid, wherein this group of feed-through signal transmission circuit may include multiple feed-through signal
At least part (for example, part or all) of transmission circuit.For example, multiple position based on grid may include this
Multiple grid positions of the chip area (for example, chip area of single silicon) of IC at least part (for example, a part or
All), such as corresponding to multiple grid positions of a grid spacing.The representative value of the grid spacing of multiple grid positions may
The size of the sub-circuit of greater than this group feed-through signal transmission circuit, for example, this group of feed-through signal transmission circuit for electric island circuit.
For example, the grid spacing of multiple grid positions be likely larger than or be several times as much as feed-through signal transmission circuit for electric island circuit
Size.In addition, at least part (for example, part or all) of the sub-circuit of this group of feed-through signal transmission circuit can distinguish position
In above-mentioned at least part of multiple grid positions.For brevity, the similar description of those embodiments is not described further in detail.
Some embodiments according to the present invention, multiple positions based on grid may include the chip area of IC (for example, single silicon
Chip area) on it is multiple have offset grid positions, it is multiple have offset grid position any one be from
Multiple grid positions on the chip area of the IC deviate the position of a positional shift.In addition, this group of feed-through signal transmission electricity
At least part (for example, partly or entirely) of multiple sub-circuit on road can be located separately multiple grid position with offset
It sets.For brevity, the similar description of those embodiments is no longer repeated.
According to some embodiments, positional shift may include at least grid lines direction on the chip area corresponding to IC
An at least positional shift forms (offset component) (for example, corresponding to the grid lines direction on the chip area of IC
Such as the offset composition of X-direction or Y-direction, or correspond respectively to two grid lines directions such as side X on the chip area of IC
To two offsets composition with Y-direction), and each position offset composition in an above-mentioned at least positional shift may be less than or equal to
The half of the grid spacing of multiple grid position.For brevity, the similar description of those embodiments is no longer repeated.
According to some embodiments, multiple position based on grid may include at least one of above-mentioned multiple grid positions
Point, and multiple grid positions with offset can be further included, wherein a part of this group of feed-through signal transmission circuit can distinguish position
In at least part of above-mentioned multiple grid positions, and another part of this group of feed-through signal transmission circuit can be located separately it is multiple
Grid position with offset.For brevity, the similar description of those embodiments is no longer repeated.
Fig. 9 is the schematic diagram of the Partial Mesh position on the chip area 900A of some embodiments according to the present invention, wherein
Chip area 900A can be considered the example of the chip area of above-mentioned IC, and label " GP " can indicate grid spacing.As shown in figure 9,
Dotted line can indicate power network (power mesh), such as the related grid lines for determining multiple positions based on grid, and be somebody's turn to do
The crosspoint of a little grid lines can indicate at least part (for example, part or all) of multiple grid position.For example,
Small cube shown in Fig. 9 can indicate the typical sizes of this group of feed-through signal transmission circuit, wherein the grid of multiple grid position
Spacing is usually bigger than the size of feed-through signal transmission circuit, and more specifically, is likely larger than or is several times as much as this group of feed-through signal
The size of any one of transmission circuit.It is not limitation of the invention only with explaining.According to some embodiments, the group
The typical sizes of feed-through signal transmission circuit may change.According to some embodiments, the possibility of this group of feed-through signal transmission circuit
With identical size.According to some embodiments, this group of feed-through signal transmission circuit need not have identical size.For example,
The size of one or more feed-through signal transmission circuits in this group of feed-through signal transmission circuit may be different from this group of feedthrough letter
The size of other one or more feed-through signal transmission circuits in number transmission circuit.
For a better understanding, small cube is shown in mesh point (such as crosspoint of those grid lines) respectively, to refer to
Show multiple position candidates for electric island (such as multiple feed-through signal transmission circuit).For example, in the Power Engineer of IC/set
Count the control of the design tool device (such as computer of at least one processor with one group of computer program of operation) of teacher
Under, grid lines and small cube can be shown in the display module of design tool device (for example, the liquid crystal display in design tool device
Device (LCD) module, or it is coupled to the liquid crystal display of design tool device) on.It is only not this hair with the purpose explained
Bright limitation.According to some embodiments, it is not necessary to which all crosspoints of those grid lines are used as multiple (such as more for electric island
A feed-through signal transmission circuit) position candidate.It note that regardless of whether to be used as this more in all crosspoints of those grid lines
A position candidate for electric island (such as multiple feed-through signal transmission circuits), it is multiple to be based on grid during the design phase of IC
Position can be designed tool device and automatically determine, wherein Power Engineer/designer of IC can be set or input it is some just
Beginning parameter (parameter (initial placement parameter) of the initial placement position on some elements of such as IC) is into setting
Tool device (as having the computer of the processor of this group of computer program of operation) is counted, to allow computer to start to automatically determine
Multiple positions based on grid.For example, this group of computer program can propagate (wave-propagation) according to based on wave
Be encoded for electric island algorithm, to determine that multiple positions for electric island (such as multiple feed-through signal transmission circuits) are multiple to be based on
The position of grid.
Figure 10 is the schematic diagram of the Partial Mesh position on the chip area 900B of another embodiment according to the present invention, wherein
Chip area 900B can be considered the example of the chip area of above-mentioned IC.For example, chip area 900B shown in Fig. 10 can position
Within the chip area 900A of embodiment illustrated in fig. 9.For brevity, dotted line shown in Fig. 9 is not shown in Figure 10, but
The part small cube in chip area 900B shown in Fig. 10 still can be demonstrated out in this embodiment.For example,
The small cube of the present embodiment can be showed in chip area 900B shown in Fig. 10, to indicate the allusion quotation of this group of feed-through signal transmission circuit
Molded dimension, wherein the grid spacing of multiple grid position is usually bigger than the size of feed-through signal transmission circuit, and it is more specific and
Speech, is likely larger than or is several times as much as the size of any one of this group of feed-through signal transmission circuit.It is not this only with explaining
The limitation of invention.According to some embodiments, the typical sizes of this group of feed-through signal transmission circuit may change.According to certain implementations
The possibility of example, this group of feed-through signal transmission circuit has identical size.According to some embodiments, this group of feed-through signal transmission circuit
Need not have identical size.For example, one or more feed-through signals in this group of feed-through signal transmission circuit transmit electricity
The size on road may be different from the ruler of other one or more feed-through signal transmission circuits in this group of feed-through signal transmission circuit
It is very little.
According to the embodiment, this group of feed-through signal transmission circuit may have certain obstructions (obstacle).The example of obstruction
It may include, but be not limited to static random access memory (static random access memory, be abbreviated as SRAM), and
Analog circuit.As shown in Figure 10, the small cube of the present embodiment, which can be located separately, hinders in addition to having had (for example, SRAM, simulation
Circuit etc.) except virtual net lattice point on (for example, the crosspoint of virtual net ruling, wherein virtual net ruling is not shown in IC's
On the display module of Power Engineer/designer design tool device).For brevity, the similar description of the embodiment is not
It is repeated again.
Figure 11 is the signal of grid position of the part with offset on chip area 900C according to an embodiment of the present invention
Figure, wherein chip area 900C can be considered the example of the chip area of above-mentioned IC.It is shown in Fig. 9 small compared with the embodiment of Fig. 9
A positional shift is deviateed from initial mesh position respectively in the position of three small cubes in square, and in the present embodiment, position is inclined
It moves and forms LY comprising the offset corresponding to Y-direction, wherein the positional shift can be considered as positional shift vector (0, LY).It please notes that
The position of three small cubes in the present embodiment can be considered as the model of the grid position with offset of the chip area of above-mentioned IC
Example.For example, during the design phase of IC, design tool device (such as the processing with one group of computer program of operation
The computer of device) it can be by the way that the position candidate of three small cubes in small cube shown in Fig. 9 be distinguished from initial mesh position
Deviate the positional shift to automatically determine multiple positions based on grid, wherein the positional shift includes that positional shift forms LY
(for example, positional shift vector (0, LY)).For brevity, the similar description of the embodiment is no longer repeated.
Figure 12 is that the part on the chip area 900D of another embodiment according to the present invention has the grid position deviated
Schematic diagram, wherein chip area 900D also can be considered the example of the chip area of above-mentioned IC.Compared with the embodiment of Fig. 9, Fig. 9 institute
A positional shift is deviateed from initial mesh position respectively in the position of above three small cube in the small cube shown, in the present embodiment
In, positional shift includes the offset composition LX and LY for corresponding respectively to X-direction and Y-direction, and wherein the positional shift can be considered as
Positional shift vector (LX, LY).Please note that the position of three in the present embodiment small cubes can also be considered as the chip of above-mentioned IC
The example of the grid position that there is offset in region.For example, during the design phase of IC, design tool device (such as
The computer of processor with one group of computer program of operation) it can be by by three small cubes in small cube shown in Fig. 9
Position candidate from initial mesh position be respectively offset from the positional shift to automatically determine multiple positions based on grid, wherein should
Positional shift includes that positional shift forms LX and LY (for example, positional shift vector (LX, LY)).For brevity, the embodiment
Similar description be no longer repeated.
Figure 13 is that the part on the chip area 900E of another embodiment according to the present invention has the grid position deviated
Schematic diagram, wherein chip area 900E can also be considered as the example of the chip area of above-mentioned IC.Compared with the embodiment of Fig. 9, Fig. 9
Shown in the position of above three small cube in small cube deviate multiple positional shifts from initial mesh position respectively.Multiple positions
The example for setting offset may include, but be not limited to, and the offset comprising corresponding respectively to X-direction and Y-direction forms LX1 and LY1 and (scheming
In 13 label be (LX1, LY1) ", be used to indicate corresponding position offset vector) first position offset, comprising corresponding respectively to X
Direction and Y-direction offset composition LX2 and LY2 (in Figure 13 label be (LX2, LY2) ", be used to indicate corresponding position offset
Vector) the second position offset, and the offset comprising corresponding respectively to X-direction and Y-direction composition LX3 and LY3 (in Figure 13
Labeled as " (LX3, LY3) ", be used to indicate corresponding position offset vector) the third place offset.It please notes that in the present embodiment
The position of three small cubes can also be considered as the example of the grid position with offset of the chip area of above-mentioned IC.Citing and
Speech, during the design phase of IC, design tool device (such as the calculating of the processor with one group of computer program of operation
Machine) it can be more by the way that the position candidate of three small cubes in small cube shown in Fig. 9 is respectively offset from this from initial mesh position
A positional shift (for example, positional shift vector (LX1, LY1), (LX2, LY2), and (LX3, LY3)) automatically determines multiple bases
In the position of grid.For brevity, the similar description of the embodiment is no longer repeated.
According to section Example, multiple feed-through signal transmission circuits may include the power supply being not configured in any of above embodiment
Switch another group of feedback of (for example, power switch shown in Fig. 2 222 or power switch 822_1-822_N shown in fig. 8)
Messenger transmission circuit, this group of feed-through signal transmission circuit described in part of above-described embodiment may include multiple feedthrough
A part of signal circuit, and another group of feed-through signal transmission circuit may include multiple feed-through signal transmission circuit
Another part.In addition, the part sub-circuit of another group of feed-through signal transmission circuit in multiple feed-through signal transmission circuit,
Such as do not divide group (for example, buffer divides group) by the repeater that any power switch controls, it can be located separately the chip region of IC
Other multiple positions based on grid on domain (for example, chip area of single silicon), wherein another group of feed-through signal transmission is electric
The repeater on road divides each of group to may include for executing multiple repeaters of feed-through signal transmission (for example, multiple common slow
Rush device).For example, a part of multiple grid positions on the chip area that multiple positions based on grid only include IC
In the case where (for example, and not all), other multiple positions based on grid may include the chip area of IC (for example, single silicon
Chip area) on multiple grid positions another part, such as multiple grid positions corresponding to grid spacing.Multiple nets
The representative value for the grid spacing that case is set is likely larger than the size of the sub-circuit of another group of feed-through signal transmission circuit, such as this is separately
The repeater of one group of feed-through signal transmission circuit divides group (for example, buffer divides group).For example, the grid of multiple grid positions
Any repeater that spacing was likely larger than or was several times as much as another group of feed-through signal transmission circuit divides the size of group.In addition, this is another
At least part (for example, part or all) of the sub-circuit of group feed-through signal transmission circuit can be located separately multiple grid positions
The another part set.For brevity, the similar description of those embodiments is not described further in detail.
Some embodiments according to the present invention, other multiple positions based on grid may include the chip area of IC (for example, single
The chip area of one silicon) on multiple grid positions with offset, this other multiple grid positions with offset it is any
Multiple grid positions on one chip area from the IC deviate the position an of positional shift (such as above-mentioned positional shift).
In addition, at least part (for example, partly or entirely) of multiple sub-circuit of another group of feed-through signal transmission circuit can divide
It Wei Yu not multiple grid position with offset.For brevity, the similar description of those embodiments is no longer repeated.
According to some embodiments, which may include other portions of above-mentioned multiple grid positions
Divide, and other multiple grid positions with offset can be further included, wherein the sub-circuit of another group of feed-through signal transmission circuit
A part can be located separately another part of above-mentioned multiple grid positions, and the son electricity of another group of feed-through signal transmission circuit
The another part on road can be located separately other multiple grid positions with offset.For brevity, those embodiments is similar
Description is no longer repeated.
According to section Example, receives and transmission control signal is to control the normally opened of multiple feed-through signal transmission circuit operations
Element, such as normally opened element 210 and 250 shown in Fig. 2 and normally opened element 810_1-810_N shown in Fig. 8, can be considered as using
The normally opened element of control purpose is made, and thereby is referred as normal open control element.For example, normal open control element is available
Normally opened buffer is implemented.In addition, not being used as the part repeater of control purpose by what any power switch controlled, such as scheming
The repeater of " ISO " is marked as in 2 and Fig. 5-7 (for example, repeater 230_1-230_N shown in Fig. 2, relaying shown in fig. 5
Device 506, repeater shown in fig. 6 606 and repeater shown in Fig. 7 706 and 708) can be considered as being used as control purpose
Normally opened repeater.In addition, the repeater controlled by one or more power switches, such as " BUF " is marked as in Fig. 2-8
Repeater in any one of buffer 224_1-224_N, Fig. 4-7 shown in any one of Fig. 2-3 (for example, be marked as
The buffer of " BUF " and buffer 824_1-824_N shown in Fig. 8), non-normally opened repeater can be considered as.For example,
When related sub-circuit (for example, for electric island) executes feed-through signal transmission, those non-normally opened repeaters can be held in institute as above
The power-up state stated, so that those non-normally opened repeaters can be considered as that above-mentioned use can be considered for the normally opened repeater of feedthrough
In the example of the normally opened repeater of feedthrough.It note that when related sub-circuit (for example, for electric island) executes feed-through signal transmission, on
Power-up state as described above can also be held in by stating the repeater that repeater divides in any one of group, thus those repeaters
Can also be considered as that the above-mentioned example for the normally opened repeater of feedthrough can be considered for the normally opened repeater of feedthrough.Therefore, when comprising
When the related sub-circuit of any repeater executes feed-through signal transmission, the relaying of power-up state as described above can be held in
Device can be considered as being used for the normally opened repeater of feedthrough because it prepares feed-through signal transmission.
According to section Example, another group of feed-through signal transmission circuit may include complete in multiple feed-through signal transmission circuits
Portion.For brevity, the similar description of those embodiments is no longer repeated.
One of the advantages of the present invention is, since the feedthrough buffer implemented using common buffer can be powered off on demand, feedthrough
Signal circuit and correlation technique can greatly reduce electricity leakage power dissipation.In addition, the group in multiple feed-through signal transmission circuits is presented
Messenger transmission circuit can be located separately multiple positions based on grid on the chip area of IC.In phase design phase of IC
Between, multiple positions based on grid can automatically determine with the help of one group of computer program, rather than by the power supply engineering of IC
Teacher/designer determines manually.As being automatically determined needed for multiple positions based on grid with the help of one group of computer program
Time (for example, half a day) less than being determined needed for multiple positions based on grid manually by Power Engineer/designer of IC
Time (for example, one or more days), the invention can save Power Engineer/designer time during the design phase of IC.Cause
This, is compared with the prior art, and the Power Engineer/designer for the feed-through signal transmission circuit implemented according to the present invention can be with one
A time efficient mode designs (for example, with the help of one group of computer program).
The foregoing is merely presently preferred embodiments of the present invention, the spiritual institute of those skill in the art related according to the present invention
The equivalence changes and modification made, should all cover in claims.
Claims (19)
1. a kind of feed-through signal transmitting device, is made on single silicon, includes:
Multiple feed-through signal transmission circuits, wherein each feed-through signal transmission circuit packet in multiple feed-through signal transmission circuit
Containing an at least sub-circuit, wherein the sub-circuit is maintained at power-up state, and the son when the sub-circuit executes feed-through signal transmission
Circuit includes:
For the normally opened repeater of feedthrough；And
Normal open control element is coupled to multiple feed-through signal transmission circuit, when the sub-circuit executes feed-through signal transmission, dimension
Hold the power-up state of the sub-circuit；
Wherein multiple sub-circuits of multiple feed-through signal transmission circuit are located at the multiple based on net of the chip area of the single silicon
The position of lattice.
2. feed-through signal transmitting device according to claim 1, which is characterized in that the sub-circuit be for electric island circuit, and
This includes an at least power switch and the multiple repeaters controlled by an at least power switch for electric island circuit.
3. feed-through signal transmitting device according to claim 2, which is characterized in that multiple repeater package contains:
Reverser pair under one group of buffer or one group of same polarity.
4. feed-through signal transmitting device according to claim 2, which is characterized in that an at least power switch includes more thresholds
It is worth CMOS transistor.
5. feed-through signal transmitting device according to claim 1, which is characterized in that the sub-circuit is that repeater divides group, and
The repeater divides group to include multiple repeaters.
6. feed-through signal transmitting device according to claim 5, which is characterized in that multiple repeater package contains:
Reverser pair under one group of buffer or one group of same polarity.
7. feed-through signal transmitting device according to claim 1, which is characterized in that the sub-circuit includes that an at least power supply is opened
Close, for when the sub-circuit execute feed-through signal transmission when, keep the sub-circuit in the power-up state, and this at least a power supply is opened
Closing includes multi-threshold cmos transistor.
8. feed-through signal transmitting device according to claim 1, which is characterized in that multiple position based on grid includes
Positioned at least part of multiple grid positions of the chip area of the single silicon；And multiple feed-through signal transmission circuit
At least part of multiple sub-circuit is located at at least part of multiple grid position.
9. feed-through signal transmitting device according to claim 8, which is characterized in that the grid spacing of multiple grid position
Greater than the size of multiple sub-circuit of multiple feed-through signal transmission circuit.
10. feed-through signal transmitting device according to claim 9, which is characterized in that the sub-circuit be for electric island circuit, and
This includes an at least power switch and the multiple repeaters controlled by an at least power switch for electric island circuit.
11. feed-through signal transmitting device according to claim 9, which is characterized in that the sub-circuit is that repeater divides group, and
The repeater divides group to include multiple repeaters.
12. feed-through signal transmitting device according to claim 1, which is characterized in that multiple position packet based on grid
Multiple grid positions with offset on the chip area containing the single silicon, multiple grid position with offset are appointed
Meaning one is to deviate the position of a positional shift from multiple grid positions on the chip area of the single silicon；And multiple feedback
At least part of multiple sub-circuit of messenger transmission circuit is located at multiple grid position with offset.
13. feed-through signal transmitting device according to claim 12, which is characterized in that between the grid of multiple grid position
Size away from the multiple sub-circuit for being greater than multiple feed-through signal transmission circuit.
14. feed-through signal transmitting device according to claim 13, which is characterized in that the sub-circuit be for electric island circuit,
And this includes an at least power switch and the multiple repeaters controlled by an at least power switch for electric island circuit.
15. feed-through signal transmitting device according to claim 13, which is characterized in that the sub-circuit is that repeater divides group,
And the repeater divides group to include multiple repeaters.
16. a kind of feed-through signal transmission method is used for feed-through signal transmitting device, wherein the feed-through signal transmitting device is single
It is made on silicon, which includes:
Transmission of control signals is to normal open control element, and wherein the feed-through signal transmitting device includes multiple feed-through signal transmission circuits
And the normal open control element；And
Multiple feedback is kept using the normal open control element when sub-circuit executes feed-through signal transmission according to the control signal
An at least sub-circuit for each of messenger transmission circuit is in power-up state；
Wherein multiple sub-circuits of multiple feed-through signal transmission circuit are located at the multiple based on net of the chip area of the single silicon
The position of lattice.
17. feed-through signal transmission method according to claim 16, which is characterized in that multiple position packet based on grid
At least part of multiple grid positions containing the chip area for being located at the single silicon；And multiple feed-through signal transmission circuit
At least part of multiple sub-circuit be located at at least part of multiple grid position.
18. feed-through signal transmission method according to claim 16, which is characterized in that multiple position packet based on grid
Multiple grid positions with offset on the chip area containing the single silicon, multiple grid position with offset are appointed
Meaning one is to deviate the position of a positional shift from multiple grid positions on the chip area of the single silicon；And multiple feedback
At least part of multiple sub-circuit of messenger transmission circuit is located at multiple grid position with offset.
19. a kind of feed-through signal transmission circuit of foundation feed-through signal transmission method operation as claimed in claim 16, wherein
The feed-through signal transmission circuit is one of multiple feed-through signal transmission circuit.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562184499P | 2015-06-25 | 2015-06-25 | |
| US62/184,499 | 2015-06-25 | ||
| US15/145,779 | 2016-05-03 | ||
| US15/145,779 US20160248423A1 (en) | 2014-03-26 | 2016-05-03 | Feedthrough signal transmission circuit and apparatus and method utilizing permanently on buffer and switchable normal buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106301340A CN106301340A (en) | 2017-01-04 |
| CN106301340B true CN106301340B (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610482065.3A Expired - Fee Related CN106301340B (en) | 2015-06-25 | 2016-06-27 | Feed-through signal transmitting device/method and related feed-through signal transmission circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106301340B (en) |
| TW (1) | TWI584588B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113158832B (en) * | 2021-03-29 | 2022-10-11 | 新华三半导体技术有限公司 | Feed-through signal inspection method and device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004014472B4 (en) * | 2004-03-24 | 2012-05-03 | Infineon Technologies Ag | Application specific semiconductor integrated circuit |
| JP4846272B2 (en) * | 2005-06-07 | 2011-12-28 | ルネサスエレクトロニクス株式会社 | Semiconductor integrated circuit device |
| US7675308B1 (en) * | 2008-08-20 | 2010-03-09 | Faraday Technology Corp. | Test circuit and test method for power switch |
| TWI405162B (en) * | 2009-12-28 | 2013-08-11 | Au Optronics Corp | Gate driving circuit |
| WO2014125979A1 (en) * | 2013-02-13 | 2014-08-21 | Semiconductor Energy Laboratory Co., Ltd. | Programmable logic device and semiconductor device |
-
2016
- 2016-06-24 TW TW105119830A patent/TWI584588B/en not_active IP Right Cessation
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Also Published As
| Publication number | Publication date |
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| TWI584588B (en) | 2017-05-21 |
| TW201701588A (en) | 2017-01-01 |
| CN106301340A (en) | 2017-01-04 |
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