Talk:CPU pinout

Pin 30

I've managed to trace pin 30 all the way to the enables for $4018-$401A, but pulling the pin high seems to have some other effects on the $4000-$401F read/write enable signals themselves. Exactly what those effects are, I don't know - there's just way too much stuff in there to understand at once. The other effects do seem to go through some sort of delay (a chain of pull-up resistors normally driven low), so perhaps connecting pin 30 to M2 (or even CLK IN) would work to enable these registers. --Quietust 15:51, 30 March 2011 (UTC)