Texas Instruments MSP430x1xx - Manual (Page 48)

Operating Modes
3-18
- Low power mode 2 (LPM2); SCG1=1, SCG0=0, OscOff=0, CPUOff=1:
CPU is disabled
MCLK is disabled
SMCLK is disabled
DCO oscillator automatically disabled because it is not needed for MCLK
or SMCLK
DCO’s dc-generator remains enabled
ACLK remains active
- Low power mode 3 (LPM3); SCG1=1, SCG0=1, OscOff=0, CPUOff=1:
CPU is disabled
MCLK is disabled
SMCLK is disabled
DCO oscillator is disabled
DCO’s dc-generator is disabled
ACLK remains active
- Low power mode 4 (LPM4); SCG1=X, SCG0=X, OscOff=1, CPUOff=1:
CPU is disabled
ACLK is disabled
MCLK is disabled
SMCLK is disabled
DCO oscillator is disabled
DCO’s dc-generator is disabled
Crystal oscillator is stopped
Note:
Peripheral operation is not halted by CPUOff. Peripherals are controlled by
their individual control registers.