SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
Only channel 0 can be enabled in slave mode. In this section, register names such as SPI1.MCSPI_CHxCTRL stand for SPI1.MCSPI_CH0CTRL, where x = 0 (channel 0 control register).
Figure 24-88 shows an example of four slaves wired on a single master device.
Channel 0 in slave mode has the following resources:
The SPICLK frequency of a transfer is controlled by the external SPI master connected to the McSPI slave device. The MCSPI_CHxCONF[5:2] CLKD bit field (where x = 0) is not used in slave mode.
The configuration of the channel can be loaded in the MCSPI_CHxCONF register (where x = 0) only when the channel is disabled.