Talk:CPU pinout: Difference between revisions
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==Pin 30 | ==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 - the RP2A03G seems to use both enhancement-mode and depletion-mode transistors but I don't know how to tell them apart, so I can't properly determine exactly how the circuits operate. --[[User:Quietust|Quietust]] 00:19, 20 March 2011 (UTC) | |||
Revision as of 00:19, 20 March 2011
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 - the RP2A03G seems to use both enhancement-mode and depletion-mode transistors but I don't know how to tell them apart, so I can't properly determine exactly how the circuits operate. --Quietust 00:19, 20 March 2011 (UTC)
