Appendix A Specifications - National Instruments VXI-AT2023 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
MA32
MBLT
SA24
SBLT
MD16
SD16
SC
FAIR
LOCK
TERM
AT Bus
Capability Code
AM
LOCK
DMA16
INT
© National Instruments Corporation
Description
Master Mode A32, A24 and A16 addressing
Master Mode block transfers
Slave Mode A24 and A16 addressing
Slave Mode block transfers
Master Mode D16 and D08 data sizes
Slave Mode D16 and D08 data sizes
Optional MXIbus System Controller
Can be a fair MXIbus requester
Can lock the MXIbus for indivisible transfers
Can terminate the MXIbus
Description
Can function as an AT Alternate Master
Can lock the AT bus for indivisible transfers
Supports D08 or D16 DMA transfers
Can interrupt on the PC AT bus
A-1 VXI-AT2023/NI-VXI ISC 386/ix Getting Started