186 www.xilinx.com Virtex-4 RocketIO MGT User GuideUG076 (v4.1) November 2, 2008Chapter 7: Simulation and Implementation RTransceiver Location and Package Pin RelationMGT Package PinsThe MGT is a hard core placed in the FPGA fabric. All package pins for the MGTs arededicated on the Virtex-4 FX device, as documented in the pinout tables and pinoutdiagrams in the Virtex-4 Packaging and Pinout Specification, UG075. When creating adesign, LOC constraints must be used to implement a specific MGT on the die and alsodetermine which package pins are used. An MGT tile contains two transceivers. LOCGT11_XnYeven is associated with MGTB and LOC GT11_XnYeven+1 is associated withMGTA. Table 7-3 through Table 7-5 show the correlation between the LOC grid and thepackage pins themselves. The pin numbers are for TXNPAD, TXPPAD, RXNPAD, andRXPPAD, respectively. Other transceiver pins, including power, ground, and clocks, aredocumented in the Virtex-4 Packaging and Pinout Specification.Table 7-3: LOC Grid and Package Pins Correlation for FF672LOCConstraintXC4VFX20-FF672 XC4VFX40-FF672 XC4VFX60-FF672MGT TXP TXN RXP RXN MGT TXP TXN RXP RXN MGT TXP TXN RXP RXNGT11_X0Y0 105B AD26 AE26 AF24 AF23 105B AD26 AE26 AF24 AF23 Not Bonded OutGT11_X0Y1 105A AB26 AC26 W26 Y26 105A AB26 AC26 W26 Y26 Not Bonded OutGT11_X0Y2 102B A24 A25 C26 D26 103B P26 R26 U26 V26 105B AD26 AE26 AF24 AF23GT11_X0Y3 102A A22 A23 A19 A20 103A M26 N26 J26 K26 105A AB26 AC26 W26 Y26GT11_X0Y4 – – – – – 102B A24 A25 C26 D26 103B P26 R26 U26 V26GT11_X0Y5 – – – – – 102A A22 A23 A19 A20 103A M26 N26 J26 K26GT11_X0Y6 – – – – – – – – – – 102B A24 A25 C26 D26GT11_X0Y7 – – – – – – – – – – 102A A22 A23 A19 A20GT11_X1Y0 110B AF4 AF5 AF7 AF8 110B AF4 AF5 AF7 AF8 Not Bonded OutGT11_X1Y1 110A AF2 AF3 AC1 AD1 110A AF2 AF3 AC1 AD1 Not Bonded OutGT11_X1Y2 113B D1 E1 G1 H1 112B V1 W1 AA1 AB1 110B AF4 AF5 AF7 AF8GT11_X1Y3 113A B1 C1 A4 A3 112A T1 U1 N1 P1 110A AF2 AF3 AC1 AD1GT11_X1Y4 – – – – – 113B D1 E1 G1 H1 112B V1 W1 AA1 AB1GT11_X1Y5 – – – – – 113A B1 C1 A4 A3 112A T1 U1 N1 P1GT11_X1Y6 – – – – – – – – – – 113B D1 E1 G1 H1GT11_X1Y7 – – – – – – – – – – 113A B1 C1 A4 A3
