z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 79

• Manufacturer Part Number: z80189
• Description: Z80180, Z8s180, Z8l180 Mpu Operation
• Manufacturer: ZiLOG Semiconductor

64
UM005003-0703
Z8018x
Family MPU User Manual
MMU Common Base Reg.
0 0 0 0 0 0 0 0
MMU Bank Base Reg.
MMU Common/
Bank Area
Register
MMU Common/
Bank Area
Register
D7 — D4
D3 — D0
Base Register
Figure 29.
Figure 30.
Physical
Address
(8 bit)
(1 M)
(512 k or 1 M)
4
4
Physical
Address
Address
Physical Address Generation
Physical Address Generation 2
Comparator
Logical
(64 k)
(19)
(7)
(19) 18
18
8
16 15
4
Adder
4 3
15
15
8
12
4
12 11
12 11
12 11
0
11
0
0
0
0
Logical
Address
(64K)