topic Re: LPC5500-Series (LPC55S2x, LPC55S6x) SPI x8 Data in NXP Designs

LPC5500-Series (LPC55S2x, LPC55S6x) SPI x8 Data

charles_mccarth — Thu, 09 Apr 2020 18:01:50 GMT

Hi. I'm looking at the LPC5500-Series parts and see they have a Flexcomm with up to 8 SPI ports. What I want is a SPI that has an 8-bit data bus. Is this possible with these parts? If not, are there any other NXP MCUs that support this? I need the Arm TrustZone feature.

Thanks!

Re: LPC5500-Series (LPC55S2x, LPC55S6x) SPI x8 Data

ZhangJennie — Mon, 13 Apr 2020 02:30:24 GMT

Hi Charles

For SPI, Data frames of 4 to 16 bits supported directly. Larger frames supported by software.

Have a nice day,

Jun Zhang

Re: LPC5500-Series (LPC55S2x, LPC55S6x) SPI x8 Data

charles_mccarth — Mon, 13 Apr 2020 19:37:02 GMT

Thanks for the response. I'm not referring to doing 8-bit packets over a single wire. I mean have 8 physical wires instead of the single MOSI wire. Can you tell me more explicitly how to do this?

Thanks,

Charles