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Chapter 5
VXI-MXI-2 Configuration and Installation
Bank 0
512 K × 32 or
512 K × 36
1 M × 32 or
1 M × 36
1 M × 32 or
1 M × 36
2 M × 32 or
2 M × 36
2 M × 32 or
2 M × 36
4 M × 32 or
4 M × 36
4 M × 32 or
4 M × 36
8 M × 32 or
8 M × 36
8 M × 32 or
8 M × 36
If you install DRAM into the VXI-MXI-2, do not attempt to use the first 4 KB of
Caution
memory space. This 4 KB space maps to the registers on the VXI-MXI-2 and does not
access onboard DRAM. Accessing this region will cause your VXI-MXI-2 to behave
incorrectly.
VXIbus Local Bus
MXI-2 Configuration Reference Manual
Table 5-1. VXI-MXI-2 DRAM Configurations (Continued)
Bank 1
Total DRAM
512 K × 32 or
512 K × 36
—
1 M × 32 or
1 M × 36
—
2 M × 32 or
2 M × 36
—
4 M × 32 or
4 M × 36
—
8 M × 32 or
8 M × 36
If you are installing more than one VXI-MXI-2 in a single VXIbus chassis,
you must configure the boards to use the local bus. The VXI-MXI-2 uses
the local bus to pass a signal to the other VXI-MXI-2 modules in the chassis
to disable the VMEbus bus timeout unit (BTO) during cycles that map to
the MXIbus. Because the local bus is used, you must install all VXI-MXI-2
modules for a single chassis in adjacent slots.
National
Instruments
Option
4 MB
4 MB
YES
8 MB
8 MB
YES
16 MB
16 MB
YES
32 MB
32 MB
YES
64 MB
YES
5-16
Switch Setting
of S6
—
ON
ON
—
ON
ON
—
ON
OFF
—
OFF
OFF
OFF
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