Prime Register Space - Samsung S3P80C5 User Manual

S3P80C5/C80C5/C80C8

PRIME REGISTER SPACE

The lower 192 bytes of the 256-byte physical internal register file (00H–BFH) is called the prime register space
or, more simply, the prime area. You can access registers in this address using any addressing mode. (In other
words, there is no addressing mode restriction for these registers, as is the case for set 1 and set 2 registers.) All
registers in prime area locations are addressable immediately following a reset.
Set 1
FFH
FCH
E0H
D0H
C0H
CPU and system registers
General-purpose registers
Peripheral control registers
Figure 2-4. Set 1, Set 2 and Prime Area Register Map
FFH
Set 2
C0H
Prime
Register
Space
00H
ADDRESS SPACES
2-7