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TM4C129DNCPDT: SSI

Part Number: TM4C129DNCPDT
Other Parts Discussed in Thread: EK-TM4C1294XL

Hi ,

I am using the SSI interface in legacy mode. My understanding is in legacy mode, these can be used as SPI bus interface. Please confirm this. Also, while using as SPI bus, is it recommended to add series resistors to these lines? 

Also, where can I find the waveforms for this interface, while using in SPI mode? 

Thanks & REgards,

S.Ramamani

  • Hi,

     Your understanding is correct. SSI in legacy is the same as SPI. Please refer to the datasheet for details on timing and operations. Below is a snippet of the description. There are also SPI example you can find in C:\ti\TivaWare_C_Series-2.2.0.295\examples\boards\ek-tm4c1294xl and C:\ti\TivaWare_C_Series-2.2.0.295\examples\peripherals\ssi\spi_master.