Xilinx Spartan-3A DSP FPGA Series, Technical Reference Manual

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Hardware overview
15
Table 3 Soft Touch connector pin assignments
Soft Touch pin FPGA pin Description Soft Touch pin FPGA pin Description
A1 H2 FMC_LA18_P B1 M8 FMC_LA19_P
A2 NC GND B2 NC GND
A3 H1 FMC_LA18_N B3 M7 FMC_LA19_N
A4 J5 FMC_LA31_P B4 K3 FMC_LA32_P
A5 NC GND B5 NC GND
A6 J4 FMC_LA31_N B6 K2 FMC_LA32_N
A7 L4 FMC_LA29_P B7 K5 FMC_LA30_P
A8 NC GND B8 NC GND
A9 L3 FMC_LA29_N B9 K4 FMC_LA30_N
A10 P8 FMC_LA16_P B10 L10 FMC_LA17_P
A11 NC GND B11 NC GND
A12 P9 FMC_LA16_N B12 L9 FMC_LA17_N
A13 U1 FMC_LA14_P B13 R8 FMC_LA15_P
A14 NC GND B14 NC GND
A15 U2 FMC_LA14_N B15 R7 FMC_LA15_N
A16 M10 FMC_LA12_P B16 K6 FMC_LA13_P
A17 NC GND B17 NC GND
A18 M9 FMC_LA12_N B18 L7 FMC_LA13_N
A19 T5 FMC_LA33_P B19 V1 FMC_LA11_P
A20 NC GND B20 NC GND
A21 U4 FMC_LA33_N B21 V2 FMC_LA11_N
A22 P7 FMC_LA24_P B22 R5 FMC_LA25_P
A23 NC GND B23 NC GND
A24 P6 FMC_LA24_N B24 R6 FMC_LA25_N
A25 U5 FMC_LA26_P B25 T10 FMC_LA27_P
A26 NC GND B26 NC GND
A27 V5 FMC_LA26_N B27 T9 FMC_LA27_N
15. FMC expansion connector
Samtec ASP-127796-01. The FMC expansion connector (J13) follows the VITA 57.1 FMC standard and is
used in low pin count (LPC) format. See
FMC expansion connector
for details.
Note
The Flash Memory and ZBT synchronous SRAM cannot be used when using an FMC module. Make sure
that the FMC adjustable power supply is configured for the voltage specified by the FMC module to use the
FMC module properly. See
FMC expansion connector
for instructions about how to properly configure the
adjustable power supply.