Z80182 Zilog., Z80182 Datasheet - Page 38

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

Zilog
FREE RUNNING COUNTER
CPU CONTROL REGISTER
DMA REGISTERS
3-38
Figure 34. DMA 0 Source Address Registers
SAR0L
Read/Write
SA7
SAR0H
Read/Write
SA15
SAR0B
Read/Write
Bits 0-2 (3) are used for SAR0B
-
A19,
Note: See Figure 49 for full description.
x
x
x
x
Figure 32. Free Running Counter
-
A18,
-
P R E L I M I N A R Y
D7 D6 D5 D4 D3 D2 D1 D0
CPU Control Register (CCR)
x
x
x
x
0 0 0
-
FRC
Read Only
A17,
SA19
7 6
0
0
1
1
Figure 33. CPU
0 0
Addr 20H
Addr 21H
Addr 22H
A16
5 4 3
0
1
0
1
SA16
SA0
SA8
0 0 0
DMA Transfer Request
/DREQ0 (external)
RDR0 (ASCI0)
RDR1 (ASCI1)
Not Used
2 1 0
Addr 18H
Addr 1FH
Z
ILOG
I
NTELLIGENT
DS971820600
Z80182/Z8L182
P
ERIPHERAL