SAM47 INSTRUCTION SET KS57C2308/P2308/C2316/P2316
5-70
NOP No Operation
NOP
Operation: Operand Operation Summary Bytes Cycles
No operation 1 1
Description: No operation is performed by a NOP instruction. It is typically used for timing delays.
One NOP causes a 1-cycle delay: with a 1 µs cycle time, five NOPs would therefore cause a 5 µs
delay. Program execution continues with the instruction immediately following the NOP. Only the
PC is affected. At least three NOP instructions should follow a STOP or IDLE instruction.
Operand Binary Code Operation Notation
– 10100000No operation
Example: Three NOP instructions follow the STOP instruction to provide a short interval for clock
stabilization before power-down mode is initiated:
STOP
NOP
NOP
NOP