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MSP430F6726A: Regarding the transition time to LPM0

Part Number: MSP430F6726A

Hi,

How many clock cycles does it take to shift from active mode to LPM0 when the CPU is operating at 8MHz?

Best Regards,

  • Hi,

    To shift from active mode to LPM0, C code "__bis_SR_register(LPM0_bits)" is needed. assembly code is "bis.w  #0x10, SR".

    The number of CPU clock cycles required for an instruction depends on the instruction format and the addressing modes used– not the instruction itself.

    according to CPUx of UG. "bis.w  #0x10, SR" is ~5 machine cycles. it is ~0.625 uS.

    Thanks!

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