Chapter 4
Register Map and Descriptions
AT-MIO-16X User Manual
4-16
©
National Instruments Corporation
6
ADCREQ
ADC Request Enable—This bit controls
DMA requesting and interrupt
generation from an A/D conversion.
If this bit is set, an interrupt or DMA
request is generated when an A/D
conversion is available in the FIFO. If
this bit is cleared, no DMA request or
interrupt is generated following an A/D
conversion. To select a specific mode,
refer to Table 4-3 for available modes
and associated bit patterns.
Table 4-3. DMA and Interrupt Modes
Interface Mode
Mode Description
IO
_
INT
DMAC
H
A
DM
ACHB
ADCR
EQ
DA
C1
RE
Q
DA
C0
RE
Q
0
1
0
0
0
1
Channel A to DAC0
0
1
0
0
1
0
Channel A to DAC1
0
1
0
0
1
1
Channel A to DAC0 and DAC1 (interleaved)
0
1
0
1
0
0
Channel A from ADC
0
0
1
0
0
1
Channel B to DAC0
0
0
1
0
1
0
Channel B to DAC1
0
0
1
0
1
1
Channel B to DAC0 and DAC1 (interleaved)
0
0
1
1
0
0
Channel B from ADC
0
1
1
0
0
0
Channel A and Channel B to DAC0 and DAC1 (double-buffered)
0
1
1
0
0
1
Channel A and Channel B to DAC0 (double-buffered)
0
1
1
0
1
0
Channel A and Channel B to DAC1 (double-buffered)
0
1
1
0
1
1
Channel A and Channel B to DAC0 and DAC1 (sync double-channel)
0
1
1
1
0
0
Channel A and Channel B from ADC (double-buffered)
Summary of Contents for DAQ AT-MIO-16X
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