Chapter 5 - Memory Expansion Module (XVME-956/101)
5.4.1 Installing 28-Pin Devices in 32-Pin Sockets
Figure 5-3 displays 28-pin devices in 32-pin sockets. Pins 1, 2, 31, and 32 are unused, (socket pin 3
becomes pin 1 o f the 28-pin device, socket pin 30 becomes device pin 28 etc.).
2 8 -pin device
F 32-pin device 1
1* 0
0
3 2 .
2* 0
0
3 1 *
1 3 0
0
3 0 2 8
2 4 0
0
2 9 2 7
3 5 o
0
2 8 2 6
4 6 0
0
2 7 2 5
5 7 o
o
2 6 2 4
6 8 0
0
2 5 2 3
7 9 o
0
2 4 2 2
8 1 0 0
0
2 3 2 1
190 1121 0
0
2 2 2 0
O
0
2 1 1 9
11 1 3 0
0
2 0 1 8
0
12 1 4
0
1
9
1 7
O 1 8 1 6
13 1 5 0
0
14 1 6
0
1
7
1 5
*Unused if 28-pin device is installed
Figure 5-3. 2 8 -Pin Device in a 32-Pin Socket
5.4.2 S t a t i c RAM Jumpering
To install Static RAMs (SRAMS), jumper the byte-wide sockets according to the contents of Table 5-7,
and then plug in the devices. Connect the off board battery to provide back-up power to the SRAMs.
See Section 5.5 for details of battery connections.
5-8
