about the ass5 timing requirement

Xin Sun (sun.simon@usa.net) Sat, 25 Mar 2000 13:00:42 -0800 

From: "Xin Sun" <sun.simon@usa.net>
Subject: about the ass5 timing requirement
Date: Sat, 25 Mar 2000 13:00:42 -0800



Sorry,
I don't exactly know the max and min.
For example, I read the datasheet of FLASH. There is a parameter is tACC.
It says Max time is 70ns. It means that from address to valid data, maximum
wait time is 70ns. Say, flash guarantees valid data at 70ns. So we calculate
the time requirement from 70ns. tACC>=70ns
While I read the datasheet of CPU, there is a parameter is tDAD. It says max
time is 28+DT+w. First I assume DT=0 and w=0. It means that the valid data
have to be presented on 28ns. so tDAD<=28ns.
And I correct?
Thanks
Have a nice weekend, everybody.