S3C84E5/C84E9/P84E9

INSTRUCTION SET

 

 

STOP — Stop Operation

STOP

Operation: The STOP instruction stops the both the CPU clock and system clock and causes the microcontroller to enter Stop mode. During Stop mode, the contents of on-chip CPU registers, peripheral registers, and I/O port control and data registers are retained. Stop mode can be released by an external reset operation or by external interrupts. For the reset operation, the RESET pin must be held to Low level until the required oscillation stabilization interval has elapsed.

Flags: No flags are affected.

Format:

Bytes Cycles Opcode

Addr Mode

(Hex)

dst

src

opc

1

4

7F

Example: The statement STOP halts all microcontroller operations.

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Samsung S3C84E5 user manual Stop Stop Operation