Z80181 Datasheet, PDF (26/74 Pages) Zilog, Inc. – SMART ACCESS CONTROLLER (SAC™)

Zilog
DMA REGISTERS (Continued)
BCR0L
Read/Write
BC7
Addr 26h
BC0
BCR0H
Read/Write
BC15
Addr 27h
BC8
Figure 31. DMA 0 Byte Counter Registers
MAR1L
Read/Write
MA7
Addr 28h
MA0
MAR1H
Read/Write
MA15
Addr 29h
MA8
MAR1B
Read/Write
Addr 2Ah
MA19 MA16
----
Figure 32. DMA 1 Memory Address Registers
Z80181
SMART ACCESS CONTROLLER SAC^™
IAR1L
Read/Write
IA7
IAR1H
Read/Write
IA15
Addr 2Bh
IA0
Addr 2Ch
IA8
Figure 33. DMA 1 I/O Address Registers
BCR1L
Read/Write
BC7
Addr 2Eh
BC0
BCR1H
Read/Write
BC15
Addr 2Fh
BC8
Figure 34. DMA 1 Byte Count Registers
2-26
DS971800500