On Sat, Aug 06, 2016 at 07:13:35PM +0200, Francesco Messineo wrote: > > If nothing drives an address line it will hold its value for a value, > > and eventually drop to 0. There is nothing that would pull the line > > one way or the other as far as I can see. > > afair, TTL (and NMOS too) floating inputs always go to "1". Unconnected TTL inputs act as high. Unconnected NMOS inputs act *as float*. Some chips have pullups (or pulldowns) on some pins. Most don't. Segher Message was sent through the cbm-hackers mailing listReceived on 2016-08-06 19:00:25
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