CC2642R: about SPI bit rate

Jerry Kuo

Part Number: CC2642R
Other Parts Discussed in Thread: CC2652P

Hi team,

My customer used CC2640R2 and move to CC2642. They find out the range of SPI bit rate is different between CC2640R2 and CC2642 as below. Customer want to know 1) if CC2642 can support SPI to 6MHz the same as CC2640R2 ? 2) what's the limitation of the SPI bit rate on CC2642 ?

For CC2640R2, the max. rate can be 48MHz/8 = 6MHz.

For CC2642, the max. rate only can be 48MHz/12=4Mhz.

over 5 years ago

0 YiKai Chen over 5 years ago

Guru 735695 points

Try to refer to M-W 's reply in e2e.ti.com/.../930565

0 Jerry Kuo over 5 years ago in reply to YiKai Chen

TI__Expert 4780 points

Hi YK,

Thank you to provide the very helpful information.

It's strange. I cannot find that link while using the key word "CC2652 SPI".

0 YiKai Chen over 5 years ago in reply to Jerry Kuo

Guru 735695 points

Jerry Kuo, as you might know, I have my own index on TI E2E forum. Just for your information, I use "CC2652P SPI frequency" when I search this link and I use the keyword because I had read it.

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CC2642R: about SPI bit rate