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Chapter 4 Register Map and Descriptions
AT-MIO-16X User Manual 4-58
©
National Instruments Corporation
DMA Channel Clear Register
Accessing the DMA Channel Clear Register clears the circuitry
associated with dual-channel DMA operation. Two DMA channels are
programmed for dual channel DMA. When the first DMA channel
terminal count is reached, the circuitry automatically sequences the
second DMA channel. When the second DMA channel terminal count
is reached, the circuitry returns to the first DMA channel for servicing.
The effect of the DMA channel Clear Register is to initialize this
circuitry.
Address: Base address + 0B (hex)
Type: Read-only
Word Size: 8-bit
Bit Map: Not applicable, no bits used
Strobe Effect: Clears the dual DMA channel circuitry
(dual DMA mode only)