This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS570LS3137: SPI slave mode documentation question

Part Number: TMS570LS3137

Regarding the SPI timing diagrams in the data sheet (SPNS162C, fig 7-15, and others): it seems to me that the behavior shown for Mode 0 (clock polarity = clock phase = 0) does not agree with the industry standard definitions for SPI mode 0. in partilcuar, in mode 0, data is captured on the odd numbered edges, e.g. on the first rising edge. What is shown here is data captured on falling edges. Is this an intentional different standard, or what?

  • Hi Tom,

    The SPI on Hercules devices support standard SPI protocol. For mode 0 (polarity=0, and phase=0), the data is output on the rising edge of the SPI clock (generated by master), and input data is sampled on the falling edge.

    Regards,
    QJ