On 05/14/2012 08:45 PM, MikeS wrote: > ----- Original Message ----- From: "Gerrit Heitsch" > >> It will still take the time printed on the EPROM before you get any valid >> data though. > > Eh? Say what? AFAIK, with /CE low the time it takes to get valid data is > tOE, e.g. 50ns vs. 200ns in a -200 'C256 (not that it matters at 1MHz). No, there is also tACC, the time from address input valid to data output valid. And that is the time printed on the EPROM and, in most cases, the same time as tCE. You can hide tOE inside tACC, but you cannot go below tACC. tOE is the time to get the output drivers up, but if tACC is not over by then, you get lots of things but not valid data. Gerrit Message was sent through the cbm-hackers mailing listReceived on 2012-05-14 20:00:11
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