Samsung S3C84E5 user manual RP0 Register Pointer, D6H, RP1 Register Pointer, D7H

S3C84E5/C84E9/P84E9CONTROL REGISTER

RP0 — Register Pointer 0 D6H Set 1

Bit Identifier

Reset Value

Read/Write Addressing Mode

.7	.6	.5	.4	.3	.2	.1	.0
1	1	0	0	0	–	–	–
R/W	R/W	R/W	R/W	R/W	–	–	–

Register addressing only

.7–.3 Register Pointer 0 Address Value

.2–.0

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.

Not used for the S3C84E5/C84E9/P84E9

RP1 — Register Pointer 1 D7H Set 1

Bit Identifier

Reset Value

Read/Write Addressing Mode

.7	.6	.5	.4	.3	.2	.1	.0
1	1	0	0	1	–	–	–
R/W	R/W	R/W	R/W	R/W	–	–	–

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 S3C84E5/C84E9/P84E9

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