LOW-POWER MODE

frankkong — Mon, 12 Nov 2018 03:57:29 GMT

Hello,

I am using S12ZVML31. How can I enter and quit the wait/stop mode? Any examples?

Re: LOW-POWER MODE

danielmartynek — Tue, 13 Nov 2018 11:27:10 GMT

Hello,

To enter Stop or Wait mode use STOP or WAIT instruction.
The stop instruction is enabled if S control bit is cleared in the CCR core register.

asm ANDCC #0x7F; // Clear S bit
asm STOP;        // MCU STOP mode‍‍‍‍

For more information, please refer to CPU S12Z RM.

Depending on the PSTP, OSCE bits, the MCU can enter either Full Stop mode or Pseudo Stop mode (Section 8.1.2.3, S12ZVC RM rev.1.9).

Every I-bit maskable interrupt is capable to wake up from Stop or Wait mode provided the peripheral that triggers the interrupt is active in the low power mode.

Regards,
Daniel

Re: LOW-POWER MODE

frankkong — Wed, 14 Nov 2018 08:03:30 GMT

Thanks,

Daniel, it works.

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