© National Instruments Corporation
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VXI-AT2000/NI-VXI MS-DOS Getting Started
Appendix A
Specifications
This appendix lists various module specifications of the AT-MXI and VXI-MXI, such as
physical dimensions and power requirements.
AT-MXI
The following pages list the specifications for the AT-MXI module.
Capability Codes
MXIbus
Capability Code
Description
MA32
Master Mode A32, A24 and A16 addressing
MBLT
Master Mode block transfers
SA24
Slave Mode A24 and A16 addressing
SBLT
Slave Mode block transfers
MD16
Master Mode D16 and D08 data sizes
SD16
Slave Mode D16 and D08 data sizes
SC
Optional MXIbus System Controller
FAIR
Can be a fair MXIbus requester
LOCK
Can lock the MXIbus for indivisible transfers
TERM
Can terminate the MXIbus
AT Bus
Capability Code
Description
AM
Can function as an AT Alternate Master
LOCK
Can lock the AT bus for indivisible transfers
DMA16
Supports D08 or D16 DMA transfers
INT
Can interrupt on the PC AT bus