Memory Device Configuration (W1-4, W6-9) - Xycom XVME-976 Manual

XVME-976 Adapter Module

Memory Device Configuration (W1-4, W6-9)

The memory expansion module's four sockets are organized as two groups of
two sockets each. Configuration for various devices to be used in each
group is controlled by jumper arrays W1-4 for sockets A and B, and W6-9
for sockets E
and F.
Each group of sockets must contain devices of a single type. Different
groups of sockets can have different devices. For example, Group 1 (sockets
A and B) could both be EPROMs, and group 2 (sockets E and F) could both
be SRAMs. However, you cannot use a SRAM in socket A, and an EPROM
in socket B.
4- 4-6
Table 4- 5. Power Fail Interrupt Trip Level (W10)
Jumper
2/3* Sets trip point at 4.25V to 4.50V
1/2 Sets trip point at 4.50V to 4.75V
*Default
Table 4-6. Power Fail Interrupt Selection (W5)
Pins
12/14*
1/2
3/4
5/6
7/8
9/10
11/12*
*Do Not Connect 11/12 if IOCHK is Selected
Function
Interrupt
IOCHK (NMI)
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
Pull-Down