Advantech PCI-1714, User Manual

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PCI-1714 & 1714UL User Manual 72
2. Two channels CH0 + CH1
3. Four channels CH0 + CH1 + CH2 + CH3
C.19 DMA Request Selector- Write BASE+34
DS0 DMA Request selector
This bit select the DMA request (hardware signal DREQ), user could use
FIFO 0 flag or FIFO 2 flag to generate DREQ.
0
FIFO 0 flag
1 FIFO 2 flag
Memory Address D31 D16 D15 D0
N CH1 data 0 CH0 data 0
N+1 CH1 data 1 CH0 data 1
N+2 CH1 data 2 CH0 data 2
N+3 CH1 data 3 CH0 data 3
: : :
Memory Address D31 D16 D15 D0
N CH1 data 0 CH0 data 0
N+1 CH3 data 0 CH2 data 0
N+2 CH1 data 1 CH0 data 1
N+3 CH3 data 1 CH2 data 1
: : :
Table C.21: Register for DMA Request Selector
Base
Address
+ HEX
PCI-1714 Register Format
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
34h W DMA Request selector
DS0