Use of the HALT Instruction to Reduce Power Consumption – KBA91167

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Question: Can the HALT instruction be used to reduce power consumption?

 

Answer:

No, the HALT instruction cannot be used to reduce power consumption. The HALT instruction will just stop the CPU (M8C). The internal main oscillator (IMO) and internal low-speed oscillator (ILO) would still be running, so the HALT instruction would not reduce current consumption.