Six-Pin Accessory Headers; J18 Header; J19 Header - Xilinx Spartan-3A User Manual

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Six-Pin Accessory Headers

The six-pin accessory headers provide easy I/O interface expansion using the various
Digilent Peripheral Modules.

J18 Header

The J18 header, shown in
along the right edge, adjacent to the BTN_EAST push button. It uses a female six-pin 90°
socket. Four FPGA pins connect to the J18 header, J18_IO<4:1>. The board supplies 3.3V to
the accessory board mounted in the J18 socket on the bottom pin.

J19 Header

The J19 header, shown in
connect to the J19 header, J19_IO<4:1>. The board supplies 3.3V to the accessory board
mounted in the J19 socket on the bottom pin.
Spartan-3A/3AN Starter Kit Board User Guide
UG334 (v1.0) May 28, 2007
Figure 15-8, is located in the bottom right corner of the board,
FPGA
Figure 15-8: FPGA Connections to the J18 Accessory Header
Figure 15-9, is left unpopulated on the board. Four FPGA pins
FPGA
These pins connect to unpopulated mounting holes.
Figure 15-9: FPGA Connections to the J19 Accessory Header
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Six-Pin Accessory Headers
J18
J18_IO1
(AA21)
J18_IO2
(AB21)
J18_IO3
(AA19)
J18_IO4
(AB19)
GND
3.3V
UG334_c15_08_052407
J19
J19_IO1
(Y18)
J19_IO2
(W18)
J19_IO3
(V17)
J19_IO4
(W17)
GND
3.3V
UG334_c15_09_052407
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