DS-FND-BSX-PC Xilinx Inc, DS-FND-BSX-PC Datasheet - Page 287

• 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
Across Constraint Sources
Across constraint sources, the following priorities apply
•
•
•
Within Constraint Sources
Within constraint sources, the following priorities apply.
•
•
•
•
Physical Constraint File (PCF)—the highest priority
User Constraint File (UCF)
Input Netlist / Netlist Constraint File (NCF)—the lowest priority
TIG (Timing Ignore)—the highest priority
FROM:source:THRU:point: TO:destination specification
The priority of each type of FROM:THRU:TO specification is as
follows (highest priority is listed first).
FROM:USER1:THRU:USER_T:TO:USER2 specification
(USER1 and USER2 are user-defined groups)
FROM:USER1:THRU:USER_T:TO:FFS specification
or
FROM:FFS:THRU:USER_T:TO:USER2 specification
(FFS is any pre-defined group)
FROM:FFS:THRU:USER_T:TO:FFS specification
FROM:source:TO:destination specification
The priority of each type of FROM:TO specification is as follows
(highest priority is listed first).
FROM:USER1:TO:USER2 specification
FROM:USER1:TO:FFS specification
or
FROM:FFS:TO:USER2 specification
FROM:FFS:TO:FFS specification
PERIOD specification
Foundation Constraints
B-15