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Rp0 — register pointer 0, Rp1 — register pointer 1 – Samsung S3C8275X User Manual

Page 110

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CONTROL REGISTERS

S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X

4-40

RP0

— Register Pointer 0

D6H

Set 1

Bit

Identifier

.7 .6 .5 .4 .3 .2 .1 .0

Reset 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 S3C8275X/C8278X/C8274X

RP1

— Register Pointer 1

D7H

Set 1

Bit

Identifier

.7 .6 .5 .4 .3 .2 .1 .0

Reset 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 S3C8275X/C8278X/C8274X

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