Z80182 Zilog., Z80182 Datasheet - Page 41

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

DS971820600
Zilog
Upon Reset
R/W
Bit
*
Note:
* If using ROM/RAM Chip Select wait state generators,
DCNTL
MWI1 MWI0
MWI1, 0
R/W
DM1, 0
the Z180 wait state generator should be set to 0.
DMSi
1
00
01
10
00
01
10
11
11
1
0
R/W
1
No. of Wait States
Transfer Mode
Level Sense
Edge Sense
Figure 42. DMA/WAIT Control Register
IWI1
R/W
M - I/O
M - I/O
I/O - M
I/O - M
Sense
1
0
1
2
3
P R E L I M I N A R Y
IWI0
R/W
1
DMS1
R/W
0
Address Increment/Decrement
IAR1 Fixed
IAR1 Fixed
IWI1, 0
MAR1+1
MAR1-1
DMS0 DIM1
00
01
10
11
R/W
0
R/W
No. of Wait States
0
IAR1 Fixed
IAR1 Fixed
Addr 32H
MAR1+1
MAR1-1
DIM0
R/W
1
2
3
4
0
DMA Ch 1 I/O Memory
Mode Select
/DREQi Select, i = 1, 0
I/0 Wait Insertion
Memory Wait Insertion
Z
ILOG
I
NTELLIGENT
Z80182/Z8L182
P
ERIPHERAL
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