MicroBlaze Development Kit Spartan-3E 1600 Edition User Guide 119
UG257 (v1.1) December 5, 2007 www.xilinx.com
Hirose 100-pin FX2 Edge Connector (J3)
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Spartan-3E data sheet. Select pairs have optional landing pads for external termination resistors.These signals are not routed with matched differential impedance, as would be required for ultimate performance. However, all traces have similar lengths to minimize skew.Tabl e 1 5 - 2: Differential I/O Pairs
Differential
Pair
Signal
Name
FPGA
Pins FPGA Pin Name Direction DIFF_TERM
External
Resistor
Designator
1FX2_IO1 B4 IO_L24N_0 I/O Yes
FX2_IO2 A4 IO_L24P_0 I/O Yes
2FX2_IO3 D5 IO_L23N_0 I/O Yes
FX2_IO4 C5 IO_L23P_0 I/O Yes
3FX2_IO5 A6 IO_L20N_0 I/O Yes
FX2_IO6 B6 IO_L20P_0 I/O Yes
4FX2_IO7 E7 IO_L19N_0 I/O Yes
FX2_IO8 F7 IO_L19P_0 I/O Yes
5FX2_IO9 D7 IO_L18N_0 I/O Yes
FX2_IO10 C7 IO_L18P_0 I/O Yes
6FX2_IO11 F8 IO_L17N_0 I/O Yes
FX2_IO12 E8 IO_L17P_0 I/O Yes
7FX2_IO13 F9 IP_L15N_0 I/O Yes
FX2_IO14 E9 IP_L15P_0 I/O Yes
8FX2_IO15 D11 IP_L09N_0 I/O Yes
FX2_IO16 C11 IP_L09P_0 I/O Yes
9FX2_IO17 F11 IO_L08N_0 I/O Yes R202
FX2_IO18 E11 IO_L08P_0 I/O Yes
10 FX2_IO19 E12 IO_L06N_0 I/O Yes R203
FX2_IO20 F12 IO_L06P_0 I/O Yes
11 FX2_IO21 A13 IO_L05P_0 I/O Yes R204
FX2_IO22 B13 IO_L05N_0 I/O Yes
12 FX2_IO23 A14 IO_L04N_0 I/O Yes R205
FX2_IO24 B14 IO_L04P_0 I/O Yes
13 FX2_IO25 C14 IO_L03N_0 I/O Yes R206
FX2_IO26 D14 IO_L03P_0 I/O Yes
14 FX2_IO27 A16 IO_L01N_0 I/O Yes R207
FX2_IO28 B16 IO_L01P_0 I/O Yes