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Original question:

MSPM0L1305: Is it possible to have two independent protection cases at the same time?

MSPM0L1306: No MUX with analog pins

Wayne Huang
Genius 16285 points
Part Number: MSPM0L1306

Dear Champs,

I am asking this for our customer.

Would you please help us clarify pin functions below?

From the datasheet below,

Questions:

Pin 27 can be used as both ADC A1 and COMP0_IN0+ at the same time as analog pin without needing any MUX. And Pin 27 can be used as TIMG1_C0, UART_RX or SPI0POCI using MUX = 2 or 3 or 4 as digital pin.

Pin 28 can be used as both ADC A0 and COMP0_IN0- at the same time as analog pin without needing any MUX. And Pin 28 can be used as either TIMG1_C1 or SPI0_CS3 using MUX = 2 or 3 as digital pin.

Is our understanding correct?

We want to confirm if ADC and COMP can be used simultaneously?

  • +1
    TI__Prodigy 80 points

    Hi Wayne, 

    Yes, your understanding is correct. The ADC and COMP can be used simultaneously without interacting with the IOMUX. Analog functions are never selected with the IOMUX and they are always configured within their respective analog peripheral.

    • PA26 can be used as ADC A1 and COMP0_IN0+ at the same time.
    • PA27 can be used as ADC A0 and COMP0_IN0- at the same time.

    For clarification, is the customer also trying to use the pins for both analog and digital functions simultaneously?

    If they are trying to use PA26 or PA27 as both an analog and digital pin, it is possible, but the application code is responsible for ensuring that the IOMUX settings do not conflict with any analog peripheral functions which can be enabled on a shared pad. 

    Reference -- MSPM0 L-Series TRM 7.1 IOMUX

    Best,

    Alex 

  • 0 in reply to Alex Grudzinski
    TI__Genius 16285 points

    Dear Alex

    no, they only want to use different analog functions simultaneously on the same pin  

    Thank you for your clarification.