>From: Herbert Graf >Yhe real killer though is refresh, which has to be done continuously. TT= YL How continuous is continuous? It would appear to be impossible to refresh= all the bits of data simultaneously. How often is this needed? Or does it= depend upon the memory used?? I'm curious because it looks like I'm going to have to use some seriously= big, fast memory chips in my next PIC based project and I'm a bit wary. I've read the PIClist simm source code but I still lack total enlightenme= nt! Ben -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads