MSP430FR573x
MSP430FR572x
SLAS639D –JULY 2011–REVISED AUGUST 2012
www.ti.com
Operating Modes
The MSP430 has one active mode and seven software-selectable low-power modes of operation. An interrupt
event can wake up the device from low-power modes LPM0 through LPM4, service the request, and restore back
to the low-power mode on return from the interrupt program. Low-power modes LPM3.5 and LPM4.5 disable the
core supply to minimize power consumption.
The following eight operating modes can be configured by software:
•
Active mode (AM)
All clocks are active
Low-power mode 0 (LPM0)
–
•
–
–
–
CPU is disabled
ACLK active, MCLK disabled, SMCLK optionally active
Complete data retention
•
•
•
Low-power mode 1 (LPM1)
–
–
–
–
CPU is disabled
ACLK active, MCLK disabled, SMCLK optionally active
DCO disabled
Complete data retention
Low-power mode 2 (LPM2)
–
–
–
–
CPU is disabled
ACLK active, MCLK disabled, SMCLK optionally active
DCO disabled
Complete data retention
Low-power mode 3 (LPM3)
–
–
–
–
CPU is disabled
ACLK active, MCLK and SMCLK disabled
DCO disabled
Complete data retention
•
•
Low-power mode 4 (LPM4)
–
–
–
CPU is disabled
ACLK, MCLK, SMCLK disabled
Complete data retention
Low-power mode 3.5 (LPM3.5)
–
–
–
–
–
RTC operation
Internal regulator disabled
No data retention
I/O pad state retention
Wake up from RST, general-purpose I/O, RTC events
•
Low-power mode 4.5 (LPM4.5)
–
–
–
–
Internal regulator disabled
No data retention
I/O pad state retention
Wake up from RST and general-purpose I/O
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