8255 function call time

I am using one of the 8255 outputs on my NI PCI-6503 board as a latch 
enable line.  I want the signal to be pulsed as rapidly as possible, but I 
still need to meet the timing requirements for my chip.

Can anyone tell me, if I were to set a line on my PCI-6503 low, and then
immediately set it high again, with consecutive function calls, how long
the line would remain in the "low" state?  Is there any chance that making
the calls in rapid succession would cause some sort of problem, such as
the line not actually toggling under certain circumstances?

Received on 2003-03-10Z09:19:16