MSPM0L1304: 1MHz with external oscillator?

Yuta Ishii

Prodigy 395 points

Part Number: MSPM0L1304

Hi Team,

Can MSPM0L work with 1MHz by external oscillator?

Best regards,

Yuta Ishii

11 months ago

0 Brandon Fisher94 11 months ago

TI__Mastermind 27515 points

Hi Yuta,

No, the MSPM0L1xxx devices do not have an input for an external oscillator.

Best Regards,
Brandon Fisher

0 Yuta Ishii 11 months ago in reply to Brandon Fisher94

TI__Prodigy 395 points

Hi Brandod,

Does that mean MSPM0L works with 32MHz or 4MHz?

0 Brandon Fisher94 11 months ago in reply to Yuta Ishii

TI__Mastermind 27515 points

Hi Yuta,

The SYSOSC Frequency and User Trims section (Section 2.3.1.2.2.) of the TRM describes the potential frequencies for SYSOSC as 32MHz, 4MHz (Factory Trimmed), or 24Mhz and 16MHz (User trimmed).

The SYSOSC frequency is different than the MCLK frequency however. You can run SYSOSC at 4MHZ and set MCLK from 4MHz to 250KHz using the MDIV setting.

If running the CPU at 1MHz is desired, use SYSOC at 4MHZ, and set MDIV to 3.

Best Regards,
Brandon Fisher

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MSPM0L1304: 1MHz with external oscillator?