Samsung S3C84E5 user manual SPH Stack Pointer High Byte, D8H, Set, SPL Stack Pointer Low Byte, D9H

CONTROL REGISTERSS3C84E5/C84E9/P84E9

SPH — Stack Pointer (High Byte) D8H Set 1

Bit Identifier

Reset Value

Read/Write Addressing Mode

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

Register addressing mode only

.7–.0	Stack Pointer Address (High Byte)
	The high-byte stack pointer value is the upper eight bits of the 16-bit stack pointer
	address (SP15–SP8). The lower byte of the stack pointer value is located in register
	SPL (D9H). The SP value is undefined following a reset.

SPL — Stack Pointer (Low Byte) D9H Set 1

Bit Identifier

Reset Value

Read/Write Addressing Mode

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

Register addressing mode only

.7–.0	Stack Pointer Address (Low Byte)
	The low-byte stack pointer value is the lower eight bits of the 16-bit stack pointer
	address (SP7–SP0). The upper byte of the stack pointer value is located in register
	SPH (D8H). The SP value is undefined following a reset.

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