CONTROL REGISTERS S3C84E5/C84E9/P84E9
4-30
SPH — Stack Pointer (High Byte) D8H Set 1
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
Reset Value x x x x x x x x
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Addressing Mode 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 .7 .6 .5 .4 .3 .2 .1 .0
Reset Value x x x x x x x x
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Addressing Mode 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.
