Samsung S3P80C5 User Manual page 41

ADDRESS SPACES
Special-Purpose Registers
Set 1
FFH
D0H
C0H
BFH
D7H
D6H
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:
00H
2-12
Control
Registers
System
Registers
RP1
Register
Pointers
RP0
Only page 0 is implemented. Page 0
Contains all of the addressable registers
in the internal register file.
Register Addressing Only
Can be Pointed by Register Pointer
Figure 2-9. Register File Addressing
General-Purpose Register
CFH
S3P80C5/C80C5/C80C8
FFH
Set 2
C0H
Prime
Registers
Page 0 Page 0
All Indirect
Addressing Register,
Modes Indexed
Addressing
Modes