[comp.arch] Wired-OR in VLSI

dlee@tut.cis.ohio-state.edu (Dik Lee) (04/01/89)

I like to find out what are the pros and cons of using wired logic
(Wired-AND/OR) in vlsi design. Wired-logic can save a lot of logic
gates, but I know it will also consume a larger amount of power,
introduce more capacitance, need time to settle, etc. etc. It seems
to me that it is not widely used in VLSI design. Is this true?
I can't find any thorough discussion in the literature about wired
logic in VLSI (I read an article on IEEE 893 FutureBus which uses
wired logic, but the discussion is not for VLSI).

I like to hear from people who have experience with wired-logic or
know some references. I am interested in both nMOS and cMOS.

- Dik Lee
Dept. Computer and Information Science	dlee@cis.ohio-state.edu
The Ohio State University		..!osu-cis!cis.ohio-state.edu!dlee
Columbus, OHIO 43210-1277		614-292-2568
-- 
Dept. Computer and Information Science	dlee@tut.cis.ohio-state.edu
The Ohio State University		..!osu-cis!cis.ohio-state.edu!dlee
Columbus, OHIO 43210-1277		614-292-2568