Figure A-9. Dma Channel Jumper Settings; Table A-5. Dma Channels For The Gpib-Pcii/Iia - National Instruments GPIB-PCII Getting Started

Changing Hardware and Software Configuration Settings

Table A-5. DMA Channels for the GPIB-PCII/IIA

DMA
Channel
1
2
3
You must position two jumpers to select a DMA channel. One jumper selects
the DMA Request line, and the other selects the DMA Acknowledge line. You
must move these two jumpers as a pair, and the DMA Acknowledge and DMA
Request lines that you select must have the same numeric suffix for proper
operation.
Figure A-9 shows the jumper position for selecting each DMA channel.
Figure A-9. DMA Channel Jumper Settings (continues)
PCII/IIA and NI-488.2 MS-DOS
Signal Lines
DMA
Acknowledge
DACK1
DACK2
DACK3
a. DMA Channel 1 Selected
(Default Setting)
A-18
Appendix A
DMA
Request
DRQ1
DRQ2
DRQ3
© National Instruments Corp.