Ziatech Corporation ZT 8907, Hardware User Manual

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6. DMA Controller
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49
Slave DMA I/O Port Addressing
Address
Slave Master Register Operation
0 C0 Channel 0 Base/Current Address Write
Channel 0 Current Address Read
1 C2 Channel 0 Base/Current Count Write
Channel 0 Current Count Read
2 C4 Channel 1 Base/Current Address Write
Channel 1 Current Address Read
3 C6 Channel 1 Base/Current Count Write
Channel 1 Current Count Read
4 C8 Channel 2 Base/Current Address Write
Channel 2 Current Address Read
5 CA Channel 2 Base/Current Count Write
Channel 2 Current Count Read
6 CC Channel 3 Base/Current Address Write
Channel 3 Current Address Read
7 CE Channel 3 Base/Current Count Write
Channel 3 Current Count Read
8 D0 Status Read
Command Write
9 D2 Write Request Write
A D4 Write Single Mask Write
B D6 Write Mode Write
C D8 Clear Byte Pointer Write
D DA Clear Master Write
E DC Clear Mask Write
F DE Write Mask Write