Advertisement
ADDRESS SPACES
Special-Purpose Registers
Bank 1
FFH
E0H
D0H
C0H
BFH
RP1
RP0
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 S3C8248/C8245/C8247/C8249
microcontroller, pages 0-4 are implemented.
Pages 0-4 contain all of the addressable
registers in the internal register file.
00H
2-12
Bank 1
Control
Registers
System
Registers
Register
Pointers
Register Addressing Only
Can be Pointed by Register Pointer
Figure 2-9. Register File Addressing
General-Purpose Register
CFH
Registers
Addressing
S3C8248/C8245/P8245/C8247/C8249/P8249
FFH
Set 2
C0H
Prime
Page 0
Page 0
All
Indirect Register,
Indexed
Modes
Addressing
Modes
LCD Data
Registers
All
Addressing
Modes
Can be Pointed to
By register Pointer
Advertisement
