Waits for incoming data byte polling interrupt pin; reads SC16IS762 RHR resigters
UBYTE interface (SPI_INTERFACE0,SPI_INTERFACE1, SPI_INTERFACE2) UBYTE - channel ( A or B ) UBYTE* - where to put the data byte
ERRCODE - SUCCESS or INVALID_INTERFACE or ERROR
N/A
sc16is762.h
N/A