Computer Hardware User Manual

S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X ADDRESS SPACES
2-21
8-bit address
form instruction
'LD R11, R2'
RP0
0 1 1 0 0 0 0 0
1 1 0 0 1 0 1 1
Selects RP1
R11
Register
address
(0ABH)
RP1
1 0 1 0 1 0 0 0
1 0 1 0 1 0 1 1
Specifies working
register addressing
Figure 2-16. 8-Bit Working Register Addressing Example