Difference between revisions of "PM Opc HALT"
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(HALT Instruction) |
(No difference)
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Latest revision as of 22:28, 21 April 2009
HALT = Halt CPU
Hex | Mnemonic | Cycles |
---|---|---|
CE AE | HALT | 8 |
Execute
See description.
Description
Halt the CPU until a interrupt is requested.
Using this instruction will reduce energy consumption.
NOTE:
If no interrupts are enabled, the system will be unable to resume operation.
Never call HALT in a middle of an interrupt.
Code will resume after HALT when the requested interrupt is completed.
Conditions
None
Examples
; Make sure interrupts are enabled and configured correctly. HALT ; Operation will resume once the interrupt finish.