DS-FND-BSX-PC Xilinx Inc, DS-FND-BSX-PC Datasheet - Page 169

• Manufacturer Part Number: DS-FND-BSX-PC
• Description: FOUNDATION BASE SYS W/SYN EXPRES
• Manufacturer: Xilinx Inc
• Type: Foundation Systemr

Specifications of DS-FND-BSX-PC

• For Use With/related Products: Xilinx Programmable Logic Devices
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 122-1185

Foundation Series 2.1i User Guide
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The timing constraints specified in the Express Constraints Editor
tabs are translated into FROM:TO or PERIOD timespecs and placed
in an NCF file. Following is an example:
Currently, Express cannot apply all Xilinx constraints. Express can
apply the following constraints:
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Express cannot apply the constraints listed below:
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The Paths tab allows you precise control of point-to-point timing
in a design.
The Ports tab allows OFFSETS, pullups/pulldowns, and pin
locations to be specified in a design.
TIMESPEC TS_CLK = PERIOD “CLK” 20 ns HIGH 10;
PERIOD
FROM:TO timespecs which use FFS, LATCHES, and PADS
Pin location constraints
Slew rate
TNM_NET
PULLUP / PULLDOWN
OFFSET:IN:BEFORE
OFFSET:OUT:AFTER
TPSYNC
TPTHRU
HDL Design Entry and Synthesis
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