MSP430 Operating Mode

小灰灰 2022-05-28 03:11 148阅读 0赞

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The MSP430 has one active mode and five software selectable low-power modes of operation. An interrupt

event can wake up the device from any of the low-power modes, service the request, and restore back to the

low-power mode on return from the interrupt program.

The following six operating modes can be configured by software:

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**? Active mode (AM)**

– All clocks are active

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**? Low-power mode 0 (LPM0)**

– CPU is disabled

– ACLK and SMCLK remain active, MCLK is disabled

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**? Low-power mode 1 (LPM1)**

– CPU is disabled

– ACLK and SMCLK remain active, MCLK is disabled

– DCO's dc generator is disabled if DCO not used in active mode

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**? Low-power mode 2 (LPM2)**

– CPU is disabled

– MCLK and SMCLK are disabled

– DCO's dc generator remains enabled

– ACLK remains active

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**? Low-power mode 3 (LPM3)**

– CPU is disabled

– MCLK and SMCLK are disabled

– DCO's dc generator is disabled

– ACLK remains active

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**? Low-power mode 4 (LPM4)**

– CPU is disabled

– ACLK is disabled

– MCLK and SMCLK are disabled

– DCO's dc generator is disabled

– Crystal oscillator is stopped

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