MSP430F6726: RTC function during low power mode

Takayuki Miyazaki

Part Number: MSP430F6726

Hi team

Our customer is developing their system with MSP430F6726, they are verifying RTC function with low power mode function. customer would like to change the operation mode to LPM3.5 in order to operate RTC, however, customer is not sure the difference between LPM3.5 configuration and LPM4.5 configuration, exactly. It seems customer is referring to the UserGuide " Table 1-2. Operation Modes ". Can I have your Expert's advice/comments on this inquiry, please?

And then, customer Is asking if OSCOFF in LPM3.5 mode is not "1" but "0".

It will be appreciated if you will share expert's comments.

Best regards,

Miyazaki

over 4 years ago

+1 Jace H over 4 years ago

TI__Guru 56685 points

Hello Miyazaki,

The difference is if RTC is enabled or not. RTC will request LF XTAL /ACLK will still be active since RTC will be requesting it. Check out this code example: https://dev.ti.com/tirex/explore/node?node=AN5JDYFnuJOSdMKMxt2Org__IOGqZri__LATEST

0 Takayuki Miyazaki over 4 years ago in reply to Jace H

TI__Genius 10120 points

Hi Jace,

Thank you for your clarification.

We shared your comments with customer, I'd like to wait customer's feedback for a while.

Best regards,

Miyazaki

**Attention** This is a public forum

MSP low-power microcontrollers

MSP low-power microcontroller forum

MSP430F6726: RTC function during low power mode