9bit SPI Interface

andykim · ‎2013-12-03

Posted on December 03, 2013 at 09:26

Hi.

I want to know that there are any MCU which support 9 bit SPI interface.

Do you know that?

I will wait for your answer.

Thanks.

Andrew Neil · ‎2013-12-03

Posted on December 03, 2013 at 13:07

Do you mean any MCU at all, or is there a particular family/subset you're interested in?

Have you looked at any datasheets?

Tesla DeLorean · ‎2013-12-03

Posted on December 03, 2013 at 15:32

I got a couple of SoC designs that work from 1-to-32 bits. The STM32F0 and STM32F3 parts support 9-bit configurations.

On other parts you can play games with sending 9x 8-bit bytes, or simply bit-banging the bus.

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zzdz2 · ‎2013-12-04

Posted on December 04, 2013 at 09:21

It's possible to bit bang 1 bit and send 8 bits with hardware, tricky but works.