I am using a 16F84 for a host controller. The IC that I am hosting uses 8 bit packets to TX and RX data. The packets change in qty from 4 to 8 packet per communication. The host (PIC16F84) will always initialize the transfer and the IC will always respond. I believe that a look up table will not be enough to accomplish the task of controlling this IC. Any suggestions on methodology or an approach for hosting this IC.