S3C84E5/C84E9/P84E9

ADDRESS SPACES

 

 

 

Special-Purpose Registers

 

General-Purpose Register

 

 

 

 

 

 

Bank 1

Bank 0

 

 

 

 

 

FFH

E0H

D0H

C0H

BFH

RP1

RP0

Control

Registers

System

Registers

CFH

Register

Pointers

FFH

Set 2

C0H

Each register pointer (RP) can independently point to one of the 24 8-byte "slices" of the register file (other than set 2). After a reset, RP0 points to locations C0H-C7H and RP1 to locations C8H-CFH (that is, to the common working register area).

NOTE: In the S3C84E5/C84E9/P84E9 microcontroller, pages 0-1 are implemented. Pages 0-1 contain all of the addressable registers

in the internal register file.

00H

Register Addressing Only

Prime

Registers

 

Page 0-1

Page 0-1

 

 

 

 

 

 

 

All

 

 

 

 

 

Indirect Register,

 

Addressing

Indexed Addressing

 

Modes

Modes

Can be pointed by Register Pointer

Figure 2-9. Register File Addressing

2-13

Page 48
Image 48
Samsung S3C84E5 user manual FFH E0H D0H C0H BFH, Control Registers System, Register Pointers, Prime Registers