MSP43020X3 Datasheet, PDF (12/92 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F20x3
MSP430F20x2
MSP430F20x1
SLAS491H – AUGUST 2005 – REVISED AUGUST 2011
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Operating Modes
The MSP430 has one active mode and five software-selectable low-power modes of operation. An interrupt
event can wake the device from any of the five 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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