You cannot use two configurations for an SCB at the same time. Re-configuring will not change the pins used because the connections are dedicated.
thanks for your reply.
I don't want to use two configurations at the same time. I just want to know if, at different times, I can have SCB1 configured as SPI on P4, P4 and P5 and then switch to the UART configuration on P3 and P3.
When you program the flash image to the chip it will reconfigure the pins at that time only; So you won't be able to change the pins during run-time I believe.