Just spotted an error in my notes: The analog channel can't be on phi2; it's not following it correctly. :P Side note; the system board according to my test record is assy 250407b On Fri, Jun 12, 2020 at 11:50 PM David Wood <jbevren_at_gmail.com> wrote: > > Here's a screenshot from my logic analyzer while I was working with > _dW on his DMA issues. > https://cdn.discordapp.com/attachments/634910231838720010/677600872087289876/unknown.png > Unsure if links or attachments are more acceptable. :) > > Note phi2 (red), and ras/cas (also red; green) labels on left. Analog > channel b2 is also connected to phi2. This is a 8-pin-video breadbin > board running an ntsc 6567r9 > > -jbev > > On Fri, Jun 12, 2020 at 11:14 PM laubzega <mileksmyk_at_gmail.com> wrote: > > > > Jim Brain wrote > > > I thought the VIC-II did the CAS cycle during PHI2=low half of the > > > cycle. I can put it on the LA tonight, but is there a diagram already > > > available showing the signals? > > > > How about the last page of this document: > > http://archive.6502.org/datasheets/mos_6567_vic_ii_preliminary.pdf > > > > M. > > > > > > > > -- > > Sent from: http://cbm-hackers.2304266.n4.nabble.com/ > >Received on 2020-06-13 06:02:39
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