MSP430F6726A: LPM3.5 IO Pad state retention

rei

Mastermind 6135 points

Part Number: MSP430F6726A

Hi,

I have a question about LPM3.5 on MSP430F6726A.

If MSP430 switch to LPM3.5 while using LCD_C,

Are COM and SEG outputs fixed to High/Low at that time?

Regards,

Rei

over 3 years ago

0 Lixin Chen1 over 3 years ago

TI__Expert 7015 points

Hi, Rei,

In LPM3.5, GPIO states is retained.

LCD_C is not in AUXVCC3 power domain. So the LCD module will no power supply in LPM3.5 mode. So the registers LCDSxx will be reset, and the LCD pins will return to GPIO functions. Then the LCD pins states will be the GPIO states before setting these pins to LCD function.

Thanks,

Lixin

0 rei over 3 years ago in reply to Lixin Chen1

Mastermind 6135 points

Hi Lixin,

I understood your explanation perfectly! Thank you very much.

Regards,

Rei

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MSP430F6726A: LPM3.5 IO Pad state retention