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
8
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