SPI/SSI control word definition

[danbocko]

Hi,

The HW_SSP_CMD0 (pg 1436 i.MX28 Applications Processor Reference Manual, Rev. 2) and
HW_SSP_BLOCK_SIZE (pg 1438) command definitions mention a SPI/SSI control word. Are these commands referring to the same control word or two different control words. In either case where can I find the bit definitions for these control words.

Thanks

Dan

[igorpadykov]

Hi dan

these are two different control words, as one uses SD/MMC Command Index and

its usage is described in sect.17.8 SD/SDIO/MMC Mode i.MX28 Reference Manual.

Other is for SPI/SSI, described in sect.17.4 Frame Format for SPI and SSI.

https://www.nxp.com/docs/en/reference-manual/MCIMX28RM.pdf

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------