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S3C8245/P8245/C8249/P8249 CONTROL REGISTER
4-37
RP0 — Register Pointer 0 D6H Set 1
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
nRESET Value 1 1 0 0 0 – – –
Read/Write R/W R/W R/W R/W R/W – – –
Addressing Mode Register addressing only
.7–.3 Register Pointer 0 Address Value
Register pointer 0 can independently point to one of the 256-byte working register
areas in the register file. Using the register pointers RP0 and RP1, you can select two
8-byte register slices at one time as active working register space. After a reset, RP0
points to address C0H in register set 1, selecting the 8-byte working register slice
C0H–C7H.
.2–.0 Not used for the S3C8245/C8249
RP1 — Register Pointer 1 D7H Set 1
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
nRESET Value 1 1 0 0 1 – – –
Read/Write R/W R/W R/W R/W R/W – – –
Addressing Mode Register addressing only
.7 – .3 Register Pointer 1 Address Value
Register pointer 1 can independently point to one of the 256-byte working register
areas in the register file. Using the register pointers RP0 and RP1, you can select two
8-byte register slices at one time as active working register space. After a reset, RP1
points to address C8H in register set 1, selecting the 8-byte working register slice
C8H–CFH.
.2 – .0 Not used for the S3C8245/C8249