MSP430x41x
MIXED SIGNAL MICROCONTROLLER
SLAS340G − MAY 2001 − REVISED JUNE 2004
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 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:
D
Active mode AM;
−
All clocks are active
D
Low-power mode 0 (LPM0);
−
CPU is disabled
ACLK and SMCLK remain active, MCLK is available to modules
FLL+ Loop control remains active
D
Low-power mode 1 (LPM1);
−
CPU is disabled
ACLK and SMCLK remain active, MCLK is available to modules
FLL+ Loop control is disabled
D
Low-power mode 2 (LPM2);
−
CPU is disabled
MCLK and FLL+ loop control and DCOCLK are disabled
DCO’s dc-generator remains enabled
ACLK remains active
D
Low-power mode 3 (LPM3);
−
CPU is disabled
MCLK, FLL+ loop control, and DCOCLK are disabled
DCO’s dc-generator is disabled
ACLK remains active
D
Low-power mode 4 (LPM4);
−
CPU is disabled
ACLK is disabled
MCLK, FLL+ loop control, and DCOCLK are disabled
DCO’s dc-generator is disabled
Crystal oscillator is stopped
10
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