z86e72 ZiLOG Semiconductor, z86e72 Datasheet - Page 43

• Manufacturer Part Number: z86e72
• Description: Otp Microcontroller
• Manufacturer: ZiLOG Semiconductor

PS008704-0507
Expanded Register File
Note:
The register file has been expanded to allow for additional system control regis-
ters and for mapping of additional peripheral devices into the register address
area. The Z8 register address space R0 through R15 has been implemented as
16 banks of 16 registers per bank. These register groups are known as the
Expanded Register File (ERF).
Bits 7–4 of register RP select the working register group. Bits 3–0 of register RP
select the expanded register file bank.
65535
32,768
0
The expanded register bank is also referred to as the expanded
register group (see
Not Addressable
External
Memory
Figure 21. External Memory Map
Data
Figure
22).
OTP Microcontroller
39