Z80182 Zilog., Z80182 Datasheet - Page 39

• Manufacturer Part Number: Z80182
• Description: Z8018x Family MPU
• Manufacturer: Zilog.

DMA REGISTERS
DS971820600
Zilog
Figure 35. DMA 0 Destination Address Registers
BCR0L
Read/Write
BC7
BCR0H
Read/Write
BC15
DAR0L
Read/Write
DA7
DAR0H
Read/Write
DA15
DAR0B
Read/Write
Bits 0-2 (3) are used for DAR0B
Figure 36. DMA 0 Byte Counter Registers
-
A19,
x
x
x
x
-
A18,
-
x
x
x
x
-
A17,
DA19
0
0
1
1
Addr 23H
Addr 24H
Addr 25H
A16
Addr 26H
Addr 27H
0
1
0
1
DA16
DA0
DA8
BC0
BC8
DMA Transfer Request
/DREQ0 (external)
TDR0 (ASCI0)
TDR1 (ASCI1)
Not Used
P R E L I M I N A R Y
Figure 37. DMA 1 Memory Address Registers
Figure 39. DMA 1 Byte Count Registers
Figure 38. DMA I/O Address Registers
MAR1L
Read/Write
MA7
MAR1H
Read/Write
MA15
MAR1B
Read/Write
-
IAR1L
Read/Write
IA7
IAR1H
Read/Write
IA15
BCR1L
Read/Write
BC7
BCR1H
Read/Write
BC15
-
-
-
MA19
Addr 2AH
Addr 28H
Addr 29H
Addr 2BH
Addr 2CH
Addr 2EH
Addr 2FH
MA16
Z
MA0
MA8
ILOG
BC0
BC8
IA0
IA8
I
NTELLIGENT
Z80182/Z8L182
P
ERIPHERAL
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