Samsung S3F80JB - Manual (Page 106)

S3F80JB CONTROL REGISTERS
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SPL
— Stack Pointer (Low Byte) D9H Set1 Bank0
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 SP value is undefined following a reset.
STOPCON
— Stop Control Register FBH Set1 Bank0
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
Reset Value 0 0 0 0 0 0 0 0
Read/Write W W W W W W W W
Addressing Mode Register addressing mode only
.7—.0 Stop Control Register Enable Bits
1 0 1 0 0 1 0 1 Enable STOP Mode
Other value Disable STOP Mode
NOTES:
1. To get into STOP mode, stop control register must be enabled just before STOP instruction.
2. When STOP mode is released, stop control register (STOPCON) value is cleared automatically.
3. It is prohibited to write another value into STOPCON.