26 Oct
1999
26 Oct
'99
12:26 p.m.
ard(a)p850ug1.demon.co.uk (Tony Duell) wrote:
But equally, I wonder why Intel made it active high
in the first place.
-tony
Hi
I would suspect that it was not intended to be tied
directly to a bus. One would normally have some robust
receiver that would invert the signal. In the days when
it was designed, the 0 to 2.5V TTL bus was just starting
out. Many had other voltage ranges and required some
conditioning. The simplest conditioning circuits usually
had an inverted signal out.
Dwight