Hello, > To me, it looks like /WE and /OE will be active together, not usually > a good thing. Yes, i think there is an error, too! Because: /OE = /(SR/W & SPhi2) That is correct! And: /WE = /(SPhi2 & /(/OE & /0)) = /(SPhi2 & OE) = /(SPhi2 & SR/W & SPhi2) = /(SPhi2 & SR/W) = /OE That isn't correct! I Think the logic without U4b is better. Then the output from U4d must be short to the input from U4c. So the logik is: /WE = /(SPhi2 & /OE) = /(SPhi2 & /(SR/W & Phi2)) = /(SPhi2 & (/SR/W | /Phi2)) = /(SPhi2 & /SR/W | SPhi2 & /SPhi2) = /(SPhi2 & /SR/W | 0) = /(SPhi2 & /SR/W) And that must be okay! Greetings from Germany Martin Message was sent through the cbm-hackers mailing listReceived on 2010-10-01 23:00:02
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