I have an 8-pin microprocessor and it takes 5 of its IO pins to connect to the MAX3420E. How do I do the IO?
The MAX3420E has four general-purpose outputs (GPOUT3–GPOUT0) and four general-purpose input pins (GPIN3–GPIN0) that are set and read using the IOPINS register, R20. This replaces the microcontroller pins used to implement the SPI interface and provides additional ones.
