Chapter 2 CPU Basics

2-1-2 CPU Control Registers

This LSI locates the peripheral circuit registers in memory space (x'03F00' to x'03FFF') with memory- mapped I/O. CPU control registers are also located in this memory space.

Table 2-1-2 CPU Control Registers

Registers

Address

R/W

Function

 

 

 

Pages

 

 

 

 

 

 

 

 

CPUM

x'03F00'

R/W *1

CPU mode control register

 

 

 

II - 21,25

MEMCTR

x'03F01'

R/W

Memory control register

 

 

 

II - 16

RCCTR

x'03F0E'

R/W

ROM correction control register

 

 

 

II - 32

SBNKR

x'03F0A'

R/W

Bank register for source address

 

 

 

II - 28

DBNKR

x'03F0B'

R/W

Bank register for destination address

 

 

 

II - 28

OSCMD

x'03F2D'

R/W

Oscillation frequency control register

 

 

 

II - 25

RCnAP

x'03FC7' to

R/W

ROM correction address setting register

 

 

 

II - 33, 34

x'03FCF'

 

 

 

 

 

 

 

 

 

 

Reserved

x'03FE0'

-

For debugger

 

 

 

-

NMICR

x'03FE1'

R/W

Non - maskable interrupt control register

[

Chapter 3

]

III - 16

xxxICR

x'03FE2' to

R/W

Maskable interrupt control register

[

Chapter 3

]

III - 17 to 37

x'03FFE'

Reserved

x'03FFF'

-

Reserved ( For reading interrupt vector data on interrupt process)

 

-

R/W : Readable / Writable

*1 a part of bit is only readable

II - 4 Overview

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Panasonic MN101C77C, F77G user manual CPU Control Registers, Readable / Writable Part of bit is only readable