National Instruments AT-MIO-16X - Manual (Page 114)

Chapter 4 Register Map and Descriptions
AT-MIO-16X User Manual 4-18 © National Instruments Corporation
5 DAC1REQ DAC 1 Request Enable—This bit
controls DMA requesting and interrupt
generation from D/A updates. If this bit
is set, an interrupt or DMA request is
generated when the DAC is ready to
receive data. If this bit is cleared, no
DMA request or interrupt is generated.
To select a specific mode, refer to
Table 4-3 for available modes and
associated bit patterns.
4 DAC0REQ DAC 0 Request Enable—This bit
controls DMA requesting and interrupt
generation from D/A updates. If this bit
is set, an interrupt or DMA request is
generated when the DAC is ready to
receive data. If this bit is cleared, no
DMA request or interrupt is generated.
To select a specific mode, refer to
1 1 1 0 0 1 Channel A and Channel B to DAC0 (double-buffered) with ADC
interrupt
1 1 1 0 1 0 Channel A and Channel B to DAC1 (double-buffered) with ADC
interrupt
1 1 1 0 1 1 Channels A and B to DACs 0 and 1 (sync double-channel) with ADC
interrupt
1 1 1 1 0 0 Channels A and B from ADC (double-buffered) with timer interrupt
1 1 1 1 0 1 Channel A to DAC0 and Channel B from ADC
1 1 1 1 1 0 Channel A to DAC1 and Channel B from ADC
1 1 1 1 1 1 Channel A to DAC0 and DAC1 (interleaved) and Channel B from ADC
Table 4-3. DMA and Interrupt Modes (Continued)
Interface Mode
Mode Description IO_
IN
T
DM
ACHA
DM
ACHB
A
DCRE
Q
DAC1REQ DAC0REQ