XC4VFX40-10FFG1152C Xilinx Inc, XC4VFX40-10FFG1152C Datasheet - Page 54

• Manufacturer Part Number: XC4VFX40-10FFG1152C
• Description: IC FPGA VIRTEX-4 FX 40K 1152FBGA
• Manufacturer: Xilinx Inc
• Series: Virtex™-4r

Specifications of XC4VFX40-10FFG1152C

• Number Of Logic Elements/cells: 41904
• Number Of Labs/clbs: 4656
• Total Ram Bits: 2654208
• Number Of I /o: 448
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 1152-BBGA, FCBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -

Chapter 1: Clock Resources
54
Declaring Constraints in UCF File
.I(user_i)
);
// Declaring constraints in Verilog
// synthesis attribute BUFR_DIVIDE of U_BUFR is BYPASS;
// synthesis attribute LOC of U_BUFR is "BUFR_X#Y#";
// where # is valid integer locations of BUFR
INST "U_BUFR" BUFR_DIVIDE=BYPASS;
INST "U_BUFR" LOC = BUFR_X#Y#;
where # is valid integer locations of BUFR
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UG070 (v2.6) December 1, 2008
Virtex-4 FPGA User Guide
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