XESS XStend XS40, Manual

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shares the input to the XS Board with other resources on the XStend Board, the shunt on
J17 should be removed when the codec is not being used.
XILINX Xchecker Interface
An XS40 Board inserted in the XStend Board can be configured and tested using a
XILINX Xchecker cable attached to header J19. When using the Xchecker cable, you
must not connect the cable between the XS Board and the parallel port of the PC. In
addition, when using the Xchecker cable with an XStend/XS40 combination, you must
make the following adjustments to the XS40 Board:
n
Remove the shunts from jumpers J4, J6, J10 and J11 of the XS40 Board;
n
Remove the serial EPROM from socket U7.
The connections between the Xchecker cable and the XS40 Board is listed in Table 3 .
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Table 3: Connections between the XStend Board Xchecker interface and the XS40 Board.
Xchecker Pin XS40 Pin
1 – VCC (+5V) 2
2 – RT 32
3 – GND 52
4 – RD 30
6 – TRIG 7
7 – CCLK 73
9 – DONE 53
10 – TDI 15
11 – DIN 71
12 – TCK 16
13 – PROGRAM 55
14 – TMS 17
15 – INIT 41
16 – CLKI 13
17 – RST 8
18 – CLKO 9
Prototyping Area
The XStend Board has a prototyping area consisting of component through-holes on an
0.1"×0.1" grid interspersed with a network of alternating VCC and GND buses as shown in
Figure 5. The buses carrying VCC run on the top side of the XStend Board while the GND
buses run on the bottom side. The VCC and GND buses have connection holes in which
a small wire can be soldered to make a connection to a nearby component through-hole.