CN104376180B - A kind of assessment of wiring channel and port method and device for planning - Google Patents
A kind of assessment of wiring channel and port method and device for planning Download PDFInfo
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- CN104376180B CN104376180B CN201410686591.2A CN201410686591A CN104376180B CN 104376180 B CN104376180 B CN 104376180B CN 201410686591 A CN201410686591 A CN 201410686591A CN 104376180 B CN104376180 B CN 104376180B
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- wiring
- port
- planning
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- gauze
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Abstract
The present invention relates to a kind of assessment of wiring channel and port method and device for planning.Method includes：Wiring guiding mark is generated according to the wiring rule of gauze to be assessed, interconnection metal layer and Route topology；The input/output port planning of correlation module is completed according to the wiring guiding mark of generation.Device includes wiring guiding identification generation unit and port planning unit.The rapid evaluation of wiring channel and the automatic planning of port may be implemented in the present invention.
Description
Technical field
The present invention relates to integrated circuit wiring design technical fields, are advised more particularly to a kind of assessment of wiring channel and port
The method of drawing.
Background technology
The layout and the mode of wiring and design of large scale integrated circuit have substantial connection, common design method mainly to have
The three classes modes such as full custom formula, semidefinite standard and customized type.Full custom formula is as General Design Process, by designer by setting
Meter requires to design step by step, is combined into various logic circuit.Semidefinite standard be in advance had it is several have it is various
The finished product or semi-finished product of function carry out the combination of circuit as unit on the basis of having unit.Customization mode is various
Basic logic unit designs intact in advance, forms independent functional unit, is placed in library and stores, and when design recalls functional unit group
Synthesize various circuits.
With the development of IC design, chip " gauze " number sharply increases, and chip wiring becomes increasingly complex.In chip
On the basis of completing allocation plan, fast and accurately assesses wiring channel service condition and completes the port planning of bottom module,
Whether whether reaction layout is rationally feasible with wiring, it is the important component of placement-and-routing's assessment early period.
Invention content
Technical problem to be solved by the invention is to provide a kind of assessment of wiring channel and port method and device for planning, can
To realize the rapid evaluation of wiring channel and the automatic planning of port.
The technical solution adopted by the present invention to solve the technical problems is：A kind of assessment of wiring channel and port planning are provided
Method includes the following steps：
(1) wiring guiding mark is generated according to the wiring rule of gauze to be assessed, interconnection metal layer and Route topology；
(2) input/output port that correlation module is completed according to the wiring guiding mark of generation is planned.
The step (1) includes following sub-step：
(11) calculating of wiring channel is completed according to interconnection metal layer, wiring rule；
(12) result of calculation of wiring channel and Route topology structural information are be combined with each other and completes wiring guiding mark
It draws.
The step (2) includes following sub-step：The overall situation of the information binding modules of mark offer is guided to set according to wiring
The calculating of module port position is completed in position in meter, then port is moved to the position being calculated, and by the metal of port
Layer is adjusted to the specified metal layer of wiring guiding mark, is finally completed the input/output port planning of each module.
The wiring guiding identifies the title for the gauze to be assessed for including assessment, completion gauze to be assessed connects up the gold used
Belong to layer and complete gauze to be assessed and connects up occupied wiring channel position and width.
The technical solution adopted by the present invention to solve the technical problems is：A kind of assessment of wiring channel and port planning are provided
Device, including：Wiring guiding identification generation unit, for wiring rule, interconnection metal layer and the wiring according to gauze to be assessed
Topology g eneration wiring guiding mark；Port planning unit, for completing the defeated of correlation module according to the wiring guiding mark of generation
Enter output port planning.
Wiring guiding identification generation unit includes：Wiring channel computation subunit, for according to interconnection metal layer, cloth
Line gauge rule completes the calculating of wiring channel；Wiring guiding mark draws subelement, is used for the result of calculation and cloth of wiring channel
Line topology information, which be combined with each other, completes the drafting of wiring guiding mark.
The port planning unit includes：Port position computation subunit, for guiding the letter that mark provides according to wiring
Cease the calculating that module port position is completed in the position in the global design of binding modules；Port position adjusts subelement, and being used for will
Port is moved to the position that the port position computation subunit is calculated；Metal layer adjusts subelement, is used for port
Metal layer is adjusted to the input/output port planning that the specified metal layer of wiring guiding mark completes each module.
The wiring guiding identifies the title for the gauze to be assessed for including assessment, completion gauze to be assessed connects up the gold used
Belong to layer and complete gauze to be assessed and connects up occupied wiring channel position and width.
Advantageous effect
Due to the adoption of the above technical solution, compared with prior art, the present invention having the following advantages that and actively imitating
Fruit：The information that the present invention can be provided according to designer completes wiring channel assessment, and automatically complete according to wiring assessment situation
Plan meet the needs of placement-and-routing's assessment at the port of bottom module.
Description of the drawings
Fig. 1 is the flow diagram of the present invention；
Fig. 2 is the flow diagram that wiring channel is assessed in the present invention；
Fig. 3 is the flow diagram of middle port planning of the present invention.
Specific implementation mode
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
The first embodiment of the present invention is related to a kind of assessment of wiring channel and port planing methods, as shown in Figure 1, including
Following steps：
(1) wiring guiding mark is generated according to the wiring rule of gauze to be assessed, interconnection metal layer and Route topology,
In, the wiring guiding identifies the title for the gauze to be assessed for including assessment, completion gauze to be assessed connects up the metal layer used
And it completes gauze to be assessed and connects up occupied wiring channel position and width；As shown in Fig. 2, the step specifically include it is following
Sub-step：
(11) calculating of wiring channel is completed according to interconnection metal layer, wiring rule.Required wiring channel width=wiring
The effective track ratios of wiring Pitch* of this layer of metal of signal number *, wherein between effective track ratios=power ground effectively
Track/ planning can use track.Such as one group 64 bus signals, it is connected up using metal 8, wiring Pitch is 0.56um, electric
Effective track is 12 between the ground of source, and it is 7 that planning, which can use track, then required wiring channel width=64*0.56*12/7=
61.44um.；
(12) result of calculation of wiring channel and Route topology structural information are be combined with each other and completes wiring guiding mark
It draws, specifically, the calculating of required wiring channel width is completed by wiring channel calculating device, is inputted further according to designer
Route topology structure determination wiring channel starting point coordinate complete wiring guiding mark drafting.Such as one group 64 total
Line signal completes wiring using metal 8 and 7 double layer of metal of metal, and wherein metal 8 is horizontal direction, Pitch 0.56um, gold
It is vertical direction to belong to 7, and the effective track of power ground of Pitch 0.56um, double layer of metal are 12, and it is 7 Hes that planning, which can use track,
10, the wiring channel width that can calculate metal 8 is 61.44um, and the wiring channel width of metal 7 is 43.008um, then inputs
Route topology structure coordinate be：(100,200), (200,200), (200,400) then connect up guiding and are identified as：Metal 8 rises
Point (100,200), terminal (200,200), width 61.44um；Metal 7, starting point (200,200), terminal (200,400), width
43.008um。
(2) input/output port that correlation module is completed according to the wiring guiding mark of generation is planned；As shown in figure 3, root
The position in the global design of the information binding modules of mark offer is guided to complete the calculating of module port position according to wiring, then will
Port is moved to the position being calculated, and the metal layer of port is adjusted to the specified metal layer of wiring guiding mark, finally
Complete the input/output port planning of each module.
Wherein, the computational methods of module port position are specific as follows：The information combination mould that mark provides is guided according to wiring
The calculating of module port position is completed in position of the block in global design, and the information that wiring guiding mark provides includes port planning
Track can be used in global origin coordinates, and planning, connects up Pitch, for example the information of certain wiring guiding mark is：Metal
8, starting point (100,200), terminal (200,200), width 61.44um, signal 64, connect up Pitch 0.56um, track can be used
For track 3,4,6,7,9,10,12, totally 7 track, then the abscissa of first signal is 100, ordinate 200-
The abscissa of 61.44/2+0.56*2=170.4, second signal are 100, ordinate 200-61.44/2+0.56*3=
170.96.Port position calculated above is position of the port in global design, and the physical location of port in the module needs
It to be converted according to position of the module in global design.For example position of the module in global design is：(50,100), then
The physical location of above-mentioned two port in the module is：(50,70.4) and (50,70.96)).
It can be seen that the first embodiment of the present invention is mainly generated including wiring guiding mark plans two steps with port
Suddenly.After the completion of chip layout is planned, wiring channel appraisal procedure is used first, generates wiring guiding mark, wiring guiding mark
Knowledge includes：" gauze " title, " gauze " complete the pitch and " gauze " that wiring uses the metal layer used, " gauze " wiring
The information such as wiring area needed for wiring are completed, the information pair that mark provides next is guided according to wiring using port planing method
The port of " gauze " correlation module is planned, determines the position of port and the metal layer of port, is finally completed " line to be assessed
The wiring channel assessment and port planning of net ".
Second embodiment of the present invention is related to a kind of assessment of wiring channel and port device for planning, including：Wiring guiding
Identification generation unit, for generating wiring guiding mark according to the wiring rule of gauze to be assessed, interconnection metal layer and Route topology
Know；Port planning unit, the input/output port for completing correlation module according to the wiring guiding mark of generation are planned.
Wiring guiding identification generation unit includes：Wiring channel computation subunit, for according to interconnection metal layer, cloth
Line gauge rule completes the calculating of wiring channel；Wiring guiding mark draws subelement, is used for the result of calculation and cloth of wiring channel
Line topology information, which be combined with each other, completes the drafting of wiring guiding mark.
Wherein, the wiring guiding identifies the title for the gauze to be assessed for including assessment, completion gauze wiring to be assessed makes
Metal layer and completion gauze to be assessed connect up occupied wiring channel position and width.
The port planning unit includes：Port position computation subunit, for guiding the letter that mark provides according to wiring
Cease the calculating that module port position is completed in the position in the global design of binding modules；Port position adjusts subelement, and being used for will
Port is moved to the position that the port position computation subunit is calculated；Metal layer adjusts subelement, is used for port
Metal layer is adjusted to the input/output port planning that the specified metal layer of wiring guiding mark completes each module.
Claims (6)
1. a kind of wiring channel assessment and port planing method, which is characterized in that include the following steps：
(1) wiring guiding mark is generated according to the wiring rule of gauze to be assessed, interconnection metal layer and Route topology；Wherein, institute
State the title for connecting up the gauze to be assessed that guiding mark includes assessment, completion gauze to be assessed connects up the metal layer used and complete
Occupied wiring channel position and width are connected up at gauze to be assessed；The wiring channel width=pds signal number * cloth
The effective track ratios of wiring Pitch* of metal layer metal where line passage, wherein having between effective track ratios=power ground
Effect track/ planning can use track；The information that the wiring guiding mark provides includes that port is planned in global origin coordinates,
And planning can use track, connect up Pitch；
(2) input/output port that correlation module is completed according to the wiring guiding mark of generation is planned.
2. wiring channel assessment according to claim 1 and port planing method, which is characterized in that step (1) packet
Include following sub-step：
(11) calculating of wiring channel is completed according to interconnection metal layer, wiring rule；
(12) result of calculation of wiring channel and Route topology structural information are be combined with each other and completes the drafting of wiring guiding mark.
3. wiring channel assessment according to claim 1 and port planing method, which is characterized in that step (2) packet
Include following sub-step：The position in the global design of the information binding modules of mark offer is guided to complete module port according to wiring
The calculating of position, then port is moved to the position being calculated, and the metal layer of port is adjusted to wiring guiding mark and is referred to
Fixed metal layer is finally completed the input/output port planning of each module.
4. a kind of wiring channel assessment and port device for planning, which is characterized in that including：Wiring guiding identification generation unit, is used
It is identified in generating wiring guiding according to the wiring rule of gauze to be assessed, interconnection metal layer and Route topology；Port planning unit,
Input/output port for completing correlation module according to the wiring guiding mark of generation is planned；Wherein, the wiring guiding mark
Know the title for the gauze to be assessed for including assessment, complete metal layer and complete gauze to be assessed that gauze wiring to be assessed uses
Connect up occupied wiring channel position and width；Where the wiring channel width=pds signal number * wiring channels
The effective track ratios of wiring Pitch* of metal layer metal, wherein effective track/ planning between effective track ratios=power ground
Track can be used；The information that the wiring guiding mark provides includes that port planning is available in global origin coordinates, and planning
Track connects up Pitch.
5. wiring channel assessment according to claim 4 and port device for planning, which is characterized in that the wiring guiding mark
Knowing generation unit includes：Wiring channel computation subunit, by being completed based on wiring channel according to interconnection metal layer, wiring rule
It calculates；Wiring guiding mark draws subelement, for the result of calculation of wiring channel and Route topology structural information to be combined with each other
Complete the drafting of wiring guiding mark.
6. wiring channel assessment according to claim 4 and port device for planning, which is characterized in that the port planning is single
Member includes：Port position computation subunit, in the global design of information binding modules for guiding mark offer according to wiring
Position complete the calculating of module port position；Port position adjusts subelement, for port to be moved to the port position
The position that computation subunit is calculated；Metal layer adjusts subelement, for the metal layer of port to be adjusted to wiring guiding mark
Know the input/output port planning that specified metal layer completes each module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686591.2A CN104376180B (en) | 2014-11-25 | 2014-11-25 | A kind of assessment of wiring channel and port method and device for planning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686591.2A CN104376180B (en) | 2014-11-25 | 2014-11-25 | A kind of assessment of wiring channel and port method and device for planning |
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| CN104376180A CN104376180A (en) | 2015-02-25 |
| CN104376180B true CN104376180B (en) | 2018-10-12 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184980A (en) * | 1996-12-12 | 1998-06-17 | 日本电气株式会社 | Placement and routing method for semiconductor integrated circuit |
| CN101063985A (en) * | 2006-04-29 | 2007-10-31 | 英业达股份有限公司 | Wire laying data generating system and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5922331B2 (en) * | 2011-02-02 | 2016-05-24 | ラピスセミコンダクタ株式会社 | Wiring structure of semiconductor device and manufacturing method thereof |
-
2014
- 2014-11-25 CN CN201410686591.2A patent/CN104376180B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184980A (en) * | 1996-12-12 | 1998-06-17 | 日本电气株式会社 | Placement and routing method for semiconductor integrated circuit |
| CN101063985A (en) * | 2006-04-29 | 2007-10-31 | 英业达股份有限公司 | Wire laying data generating system and method |
Non-Patent Citations (1)
| Title |
|---|
| "协处理器版图设计及验证";曹华锋;《中国优秀硕士学位论文全文数据库 信息科技辑》;20030915(第3期);正文第28页第3.2.1.3节,第31页第3.2.2节,第33页第3.2.3节,第35页第3.2.3.1节 * |
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| CN104376180A (en) | 2015-02-25 |
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