UG024 (v1.5) October 16, 2002 www.xilinx.com 99RocketIO™ Transceiver User Guide 1-800-255-7778MGT Package Pins RMGT Package PinsThe MGTs are a hard core placed in the FPGA fabric; all package pins for the MGTs arededicated on the Virtex-II Pro device. This is shown in the package pin diagrams in theVirtex-II Pro Handbook. When creating a design, LOC constraints must be used toimplement a specific MGT on the die. This LOC constraint also determines which packagepins are used. Table 5-1 shows the correlation between the LOC grid and the package pinsthemselves. The pin numbers are the TXNPAD, TXPPAD, RXPPAD, and RXNPAD,respectively. The power pins are adjacent to these pins in the package pin diagrams of thehandbook..Table 5-1: LOC Grid & Package Pins Correlation for FG256, FG456, and FF672LOCConstraintsFG256 FG456 FF6722VP2/2VP4 2VP2/2VP4 2VP7 2VP2/2VP4 2VP7GT_X0_Y0 T4, T5, T6,T7AB7, AB8,AB9, AB10AB3, AB4,AB5, AB6AF18, AF17,AF16, AF15AF23, AF22,AF21, AF20GT_X0_Y1 T10, T11,T12, T13AB13,AB14,AB15, AB16A3, A4, A5,A6A18, A17,A16, A15A23, A22,A21, A20GT_X1_Y0 A4, A5, A6,A7A7, A8, A9,A10AB7, AB8,AB9, AB10AF12, AF11,AF10, AF9AF18, AF17,AF16, AF15GT_X1_Y1 A10, A11,A12, A13A13, A14,A15, A16A7, A8, A9,A10A12, A11,A10, A9A18, A17,A16, A15GT_X2_Y0 AB13, AB14,AB15, AB16AF12, AF11,AF10, AF9GT_X2_Y1 A13, A14,A15, A16A12, A11,A10, A9GT_X3_Y0 AB17, AB18,AB19, AB20AF7, AF6,AF5, AF4GT_X3_Y1 A17, A18,A19, A20A7, A6, A5,A4Table 5-2: LOC Grid & Package Pins Correlation for FF896 and FF1152LOCConstraintsFF896 FF11522VP7/2VP20 2VP30 2VP20/2VP30 2VP40 2VP50GT_X0_Y0 AK27, AK26,AK25, AK24AK27, AK26,AK25, AK24AP29, AP28,AP27, AP26AP33, AP32,AP31AP30AP33, AP32,AP31AP30GT_X0_Y1 A27, A26,A25, A24A27, A26,A25, A24A29, A28,A27, A26A33, A32,A31, A30A33, A32,A31, A30GT_X1_Y0 AK20, AK19,AK18, AK17AK20, AK19,AK18, AK17AP21, AP20,AP19, AP18AP29, AP28,AP27, AP26AP29, AP28,AP27, AP26GT_X1_Y1 A20, A19,A18, A17A20, A19,A18, A17A21, A20,A19, A18A29, A28,A27, A26A29, A28,A27, A26GT_X2_Y0 AK14, AK13,AK12, AK11AK14, AK13,AK12, AK11AP17, AP16,AP15, AP14AP21, AP20,AP19, AP18AP25, AP24,AP23, AP22