AM2431: What is the theoretical max frequency at which an external master can drive it in slave receive mode

Rajeev Bharol

Part Number: AM2431

Hi experts,

We are running AM243 port in slave receive mode on one of the SPI ports. What is the theoretical max limit for the bit rate for an external master to drive the SPI clock?

Thanks

Rajeev

over 2 years ago

0 Sri Vidya Gunturi over 2 years ago

TI__Expert 7586 points

Hi Rajeev

Will get back soon on this

Regards

Sri Vidya

0 Sri Vidya Gunturi over 2 years ago in reply to Sri Vidya Gunturi

TI__Expert 7586 points

Hi Rajeev

Please refer to the below example for the best Transmission speed.

https://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/latest/exports/docs/api_guide_am243x/EXAMPLES_DRIVERS_MCSPI_PERFORMANCE_8BIT.html

Here we are transmitting data at 2.2usec speed with 50MHz clock speed

Regards

Sri Vidya

0 Rajeev Bharol over 2 years ago in reply to Sri Vidya Gunturi

Prodigy 90 points

Hi Sri Vidya,
This shows transmission in Tx only mode. My question was different.

0 Sri Vidya Gunturi over 2 years ago in reply to Rajeev Bharol

TI__Expert 7586 points

Hi Rajeev

All SPI instances shall support up to 50MHz clock (master or slave mode).

Regards

Sri Vidya

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AM2431: What is the theoretical max frequency at which an external master can drive it in slave receive mode