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interfacing Analog Devices' three wire (SPI) devices to TM4C129XNCZAD

Muhammad Sardar
Prodigy 10 points
Other Parts Discussed in Thread: TM4C129XNCZAD

Hi,

I need to control/program an Analog Devices' PLL via TM4C129XNCZAD. Looking at the TM4C129XNCZAD datasheet, it seems t there's 4 QSSI devices available but I am not sure if this is compatible with standard SPI. The TM4C129XNCZAD datasheet does suggest that it will work with a FreeScale SPI interface.

Can anybody shed some light on this, please?

Thank you.

  • 0
    TI__Guru**** 244400 points
    Hello Muhammad,

    Unless the Analog Devices PLL uses a variant of SPI, it should work as is. However do note that the SSI on TM4C12x devices is upto 16 bits of data length. So if the Size of the frame is more than 16 bits, 2 transactions must be used with FSS under GPIO control.

    Regards
    Amit