Table of Contents
Advertisement
Appendix A
Changing Hardware and Software Configuration Settings
Table A-4. PC Interrupt Assignment Map (continued)
IRQ
4
3
2
1
0
DMA Channel Selection
The GPIB-PCII/IIA can use DMA channels 1, 2, or 3, or no DMA at all. The
DMA channel is selected by the jumper sets labeled DRQ1 through DACK 3
(see Figure A-1).
Each DMA channel consists of two signal lines, as shown in Table A-5.
© National Instruments Corp.
Device
Serial Port 1
BSC
BSC Alt.
SDLC
Serial Port 2
BSC
BSC Alt.
Cluster (Primary)
PC Network (default)
PC Network Alt. (default)
SDLC
WD EtherCard+ (default)
3Com EtherLink (default)
IRQ Chain for PC AT
Keyboard Controller Output Buffer Full
Timer Channel 0 Output
A-17
PCII/IIA and NI-488.2 MS-DOS
Advertisement
Table of Contents
