Chapter 5 - Memory Expansion Module (XVME-956/101)
Board
Page Select
Res*
Socket Numbers
Bit
7
6
5
4
3
2
1
0
Name
BD1
BDO
PS1
PSO
*
SN2
SN 1
SNO
Read/
Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description:
Bits 7, 6
(BDO, BD1)
Board Number. Module is selected if these bits match board number
jumpering of W11 pins 1-4.
Bits 5, 4
(PSO, PST)
Page Select. Used to select 64K byte pages from larger memory devices.
PS2 and PS3 are in Control Register 2.
Bit 3
*Reserved
Bits 2-0
(SNO-SN2)
Socket number in binary where SNO is the LSB.
Table 5-19 shows the Control Register 1 bit usage.
Table 5-19. C o n t r o l Register 1 Bit Usage
5-20
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