z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 191

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

176
UM005003-0703
Z8018x
Family MPU User Manual
Figure 74 depicts CPU register configurations.
Figure 74.
Accumulator (A, A')
The Accumulator (A) is the primary register used for many arithmetic,
logical, and I/O instructions.
Accumulator A'
Accumulator A
B Register
D Register
H Register
B' Register
D' Register
H' Register
Interrupt
Vector Register
Index Register
Index Register
Stack Pointer
Program Counter
I
Register Set GR'
Register Set GR
Special Register
CPU Register Configurations
Flag Register F'
Flag Register F
C Register
E Register
L Register
C' Register
E' Register
L' Register
R Counter
IX
IY
SP
PC
R
General
Purpose
Registers
General
Purpose
Registers