Tool/software:
When I use SPI loopback with Motorola 4 wire, I still see output on PICO/POCI/SCLK/CS pins and yet I can receive the data that is being sent in loopback. The only control that I use for loopback is CTL1.LBM. This is not what is implied in TRM on Figure 19-3. Internal Loop Back Mode.
Is this expected behavior or something is missing in Loopback mode set up for SPI except CTL1.LBM?
Regards,
Eugene
