Xilinx 8.2i manual PAR Options 2General Options Function Range Default, Existingfile

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PAR Options

Table 9-2:General Options

 

Option

 

Function

 

Range

 

Default

 

 

 

 

 

 

 

 

 

 

 

 

–nopad

 

Suppresses the creation of the

 

N/A

 

Generate all

 

 

 

 

PAD files in all three formats

 

 

 

PAD files

 

 

 

 

 

 

 

 

 

 

 

 

–p

 

Do not run the Placer

 

N/A

 

Run Placement

 

 

 

 

 

 

 

 

 

 

 

 

–power

 

Power Aware PAR

 

N/A

 

Off

 

 

 

 

 

 

 

 

 

 

 

 

r

 

Do not run the Router

 

N/A

 

Run Router

 

 

 

 

 

 

 

 

 

 

 

 

ub

 

Use bonded IOB sites for

 

N/A

 

Do not use

 

 

 

 

unbonded IOBs

 

 

 

bonded IOB

 

 

 

 

 

 

 

 

 

sites

 

 

 

 

 

 

 

 

 

 

 

 

wexisting_file

 

Overwrite existing output files

 

N/A

 

Do not

 

 

 

 

that have the same name and

 

 

 

overwrite

 

 

 

 

path

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

x

 

Ignore any timing constraints

 

N/A

 

Use timing

 

 

 

 

provided and generate new

 

 

 

constraints if

 

 

 

 

timing constraints on all internal

 

 

present or use

 

 

 

 

clocks. Adjust these constraints

 

 

Automatic

 

 

 

 

while PAR is running to focus on

 

 

Timespecing if

 

 

 

 

either performance or run time

 

 

 

no timing

 

 

 

 

based on effort level setting.

 

 

 

constraints are

 

 

 

 

 

 

 

 

 

given

 

 

 

 

 

 

 

 

 

 

 

Table 9-3:Guide Options

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Option

 

Function

 

Range

 

Default

 

 

 

 

 

 

 

 

–gf

Specifies the name of a NCD

 

N/A

 

No guide file is

 

 

 

file to be used as the guide file

 

 

 

 

used

 

 

 

for PAR

 

 

 

 

 

 

 

 

 

 

 

 

 

–gm

Selects the mode of guide to

 

exact,

 

Exact

 

 

 

use during Place and Route

 

leverage,

 

 

 

 

 

 

 

 

incremental

 

 

 

 

 

 

 

 

 

 

 

 

 

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Xilinx 8.2i manual PAR Options 2General Options Function Range Default, Existingfile, Guide Options Function Range Default