z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 314
z80189
Manufacturer Part Number
z80189
Description
Z80180, Z8s180, Z8l180 Mpu Operation
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z80189.pdf
(326 pages)
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298
UM005003-0703
Register
Timer Data Register
Channel 1L:
Timer Data Register
Channel 1H:
Timer Reload Register
Channel 1L
Timer Reload Register
Channel 1H:
Free Running Counter:
DMA Source Address
Register Channel 0L:
DMA Source Address
Register Channel 0H:
DMA Source Address
Register Channel 0B:
DMA Destination Address
Register Channel 0L:
DMA Destination Address
Register Channel 0H:
DMA Destination Address
Register Channel 0B:
DMA Byte Count Register
Channel 0L:
DMA Byte Count Register
Channel 0H:
DMA Memory Address
Register
Channel 1L:
DMA Memory Address
Register
Channel 1H:
Z8018x
Family MPU User Manual
Table 57.
TMDR1L
TMDR1H
RLDR1L
RLDR1H
FRC
SAR0L
SAR0H
SAR0B
DAR0L
DAR0H
DAR0B
BCROL
BCROH
MAR1L
MAR1H
Mnemonics Address
Internal I/O Registers (Continued)
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
6
9
4
5
7
8
0
1
2
3
4
5
6
7
8
Read only
* In the R1 and Z mask, these DMAC registers are expanded from 4 bits to 3 bits in the
package version of CP-68.
Bits 0-2 (3) are used for SAR0B
Bits 0-2 (3) are used for DAR0B
A
A
X
X
X
X
19
X
X
X
X
19
*,
*,
A
A
X
X
X
X
X
X
X
X
18
18
,
,
A
A
0
0
1
1
17
0
0
1
1
17
,
,
A
A
0
1
0
1
0
1
0
1
16
16
Remarks
DMA Transfer Request
DMA Transfer Request
RDR0 (ASCI0)
Not used
DREQ
RDR1 (ASCI1)
DREQ
TDR0 (ASCI0)
Not used
TDR1 (ASCI1)
0
0
(external)
(external)
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