Other Parts Discussed in Thread: MAX3223
I just want to verify the expected operation of the UART/SPI logic on the DM648 EVM.
Because of Pin Muxing, when the signal UART/SPIn is low, the MAX3223 transceiver EN# pin is high.
During this time, any incoming signal on R1In of the MAX is ignored as the R1OUT is in High-Z.
Doesn't this mean you could miss serial communications when in SPI mode?
If I want SPI and UART both alive it looks like I'd have to set up my pinmux register bits 13:12 to 11 and
then use GPIO or some other I/O to create the SPI chip selects. Is this correct?