MSP430FR2110 Clock Counter in LPM3 and LPM4

Samuel Jaffe

Other Parts Discussed in Thread: MSP430FR2110

Hi,

I'm supporting a customer who wants to use a counter clock input (TB1CLK or INCLK) in low-power modes. Will the MSP430FR2110 still count when in LPM3 or LPM4?

Thanks,

-Sam

over 7 years ago

0 Jace H over 7 years ago

TI__Guru 56685 points

Hello Samuel,

Please see Table 6-1 Operating Modes in section 6.3 Operating Modes wihtin the datasheet. This table describes the state of the chip (and its peripherals) in each LPM. According to this table, Timer_B can still be used in LPM3, but not in LPM4.

0 Clemens Ladisch over 7 years ago

Guru 244020 points

The low-power modes disable certain clocks. This implies that if your external clock is not disabled, the timer module still runs.

(Only LPMx.5 disable V_CORE.)

0 Samuel Jaffe over 7 years ago in reply to Clemens Ladisch

TI__Mastermind 25590 points

Great! Thanks for your quick replies! The datasheet really does have everything it seems.

Have a great day!

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MSP430FR2110 Clock Counter in LPM3 and LPM4