void Port_AlternateFunction (uint8_t port_index, uint8_t pins_mask, uint8_t enable, uint32_t pctl_mask)

[salma97]

This Function is provided to set or reset AFSEL register
if enable == 1 ---> set AFSEL and set the corresponding 4 bits in the PCTL register using pctl_mask
if enable == 0 ---> reset AFSEL and reset the corresponding 4 bits in the PCTL register

set CR using pins_mask