My project will be using SRAM. EEPROM or flash will not work since I will be constantly re-writing the memory. I understand that external memory busses have been around but on some of the microchip parts, there is a bus specificaly designed to interface with external memory. The PIC I am looking at right now is the 18F8722. This bus includes adress and data lines as well as other lines to control external memory. Acording to the PIC18F8722 data sheet, this bus allows the program to seemlessly work with the external memory. My question is, will PBP address greater amounts of RAM then what is included on the chip and if not is there anything I can do to make it do this.