S3C9442 datasheet(22/50 Pages) SAMSUNG

Part #	S3C9442

Description	SAM88RCRI INSTRUCTION SET

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Manufacturer	SAMSUNG [Samsung semiconductor]

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SAM88RCRI INSTRUCTION SET

S3C9442/C9444/F9444/C9452/C9454/F9454

6-22

IDLE — Idle Operation

IDLE

Operation:

The IDLE instruction stops the CPU clock while allowing 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

(Hex)

Addr Mode

dst

src

opc

1

4

6F

–

Example:

The instruction

IDLE

NOP

stops the CPU clock but not the system clock.

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