Hi Swinks,
Sorry, i didnt give a full descrip-tion of the chip itself....

It doesn't need programming or anything, it's part of the clocking circuit to keep the 6800 running (the heartbeat).

You DON'T need the 9602 chip if you're using the 6802 cpu, as some games use 6802, some use 6800....and i guess the more fussy collectors who want to keep board as original as possible with a 6800 will need this chip.

MM.