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Register Map and Descriptions Appendix D
Lab-PC+ User Manual D-12 © National Instruments Corporation
Bit Name Description (continued)
1 DIOINTEN This bit enables or disables generation of an interrupt when either
Port A or Port B is ready to transfer data, and an interrupt request
is set via PC3 or PC0 of 8255A. (See Appendix C, OKI 82C55A
Data Sheet, for details.) If DIOINTEN is cleared, the interrupts
from PC3 or PC0 are disabled.
0 DMAEN This bit enables and disables the generation of DMA requests. If
DMAEN is set, a DMA request is generated whenever an A/D
conversion result is available to be read from the FIFO. If
DMAEN is cleared, no DMA request is generated.