Xycom XVME-500, Manual

Page: 25 / 104

XVME-500/590 Manual
February, 1988
2.5.1 Base Address Selection Jumpers
(526 - 531)
The module base address is selected by using jumpers J26-J31 (see Figure 2-1 or
Figure 2-2 for the locations on the board). Figure 2-3 shows a close-up of the
base-address jumpers and how each jumper relates to the address lines.
A15
A l 4
A l 3
A l 2
A l l
A10
l
Figure 2-3. Base Address Jumpers
When a jumper is INSTALLED, the corresponding base address
bit
will be logic ‘0’.
However, when a jumper is REMOVED, the corresponding base address bit will be
logic ‘1’.
Table 2-2 shows a list of the 64 1K boundaries which can be used as module base
addresses in the Short I/O Address Space (as well as the corresponding jumper
settings for each address).
2-8
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