S3C84E5/C84E9/P84E9

INSTRUCTION SET

 

 

IDLE — Idle Operation

IDLE

Operation: (See description)

The IDLE instruction stops the CPU clock while allowing the system clock oscillation to continue. Idle mode can be released by an interrupt request (IRQ) or an external reset operation.

Flags: No flags are affected.

Format:

Bytes

Cycles Opcode

Addr Mode

 

(Hex)

dst

src

opc

1

4

6F

Example: The instruction IDLE stops the CPU clock but it does not stop the system clock.

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Samsung S3C84E5 user manual Idle Idle Operation