ruud.baltissen_at_apg.nl
Date: 2008-11-27 12:40:52
Hallo allemaal,
I'm busy with the SCH and I have a question, but first some facts: the
6703 PLA outputs a signal at pin 23 called CIA PLA. The expansion port
has has two signals called CIA and CIA PLA. The 6526 has a signal
labeled CIA connected to input CS. And that are all the signals related
to CIA I could find. According this SCH the 6526 can only be used if an
cartridge is inserted that connects CIA and CIA PLA, something I hardly
believe. Can someone shed some light on the case, please?
Then a question out of curiousity: what is the idea behing using
transistor Q8 in the R/W line towards the 6703 PLA?
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/ / |_/ Groetjes, Ruud
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