I want to use PCS of SPI 1 as a chip select pin in MK22FN512VLL12 microcontroller whereas the rest of the PCS line as a digital output to control LEDs/display.
I understand that PCS bits (16-21) of PUSHR register is used to operate the corresponding PCS pin and PCSIS bits(16-21) of MCR register to select default state of PCS pin.
If is dont operate the PCS bits (16-21) of PUSHR register while operating SPI, then can i use the unused PCS pins as normal GPIO's?
Thanks and best regards,
PORTx_PCRn[MUX] can be used to select the pin is Peripheral Chip Select or GPIO.
If you want to configure the Pin as GPIO function, then please set MUX=0001