SLAS787 datasheet(8/52 Pages) TI2

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MSP430G2231-Q1

SLAS787B – NOVEMBER 2011 – REVISED MARCH 2014

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8.3 Operating Modes

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:

•

Active mode (AM)

–

All clocks are active

•

Low-power mode 0 (LPM0)

–

CPU is disabled

–

ACLK and SMCLK remain active, MCLK is disabled

•

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

•

Low-power mode 2 (LPM2)

–

CPU is disabled

–

MCLK and SMCLK are disabled

–

DCO's dc generator remains enabled

–

ACLK remains active

•

Low-power mode 3 (LPM3)

–

CPU is disabled

–

MCLK and SMCLK are disabled

–

DCO's dc generator is disabled

–

ACLK remains active

•

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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