sleep mode

[monstor]

which MCU would have sleep mode and the function is as similar as S12DP512?

[iggi · Accepted solution]

Hi,

Sleep mode is actually called Stop mode and it is a functionality that every MCU has. On all S12(X) devices in order to enter Stop mode, two instructions must be executed:

asm ANDCC #0x7F; //clear S bit in CPU Condition Code Register (CCR) - enable the stop mode.

asm STOP;          // stop mode

[monstor]

Really thanks for your reply.

We need to exist the STOP mode by external interrupt. E.g. nXIRQ or IRQ. Can we wake up the MCU by any internal interrupt? Let say timer?

I want to implement a periodical mode for power saving.