Dear all:
In the forun , The OMAPL138 platform SPI Data Format Registers (SPIFMTn) will indicate that if the SPI is configured as slave, PRESCALE will be ignored but does need to be configured to a valid value.
http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/50281.aspx
Question is : At dm368 spi slave mode ,is the PRESCALE values need be ignored?