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Altera_Forum
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12 years ago

One segment vs two segment State Machine style

Hello to everybody, I am trying to decrease usage of elements in my project for Cyclone IV in Quartus II 13.0. I found the way of improvement synchronous sequential circuits in the book (rtl ha...
Altera_Forum's avatar
Altera_Forum
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12 years ago

Hi all, according to josyb, two-segmented style is better.

But FvM and kaz prefer one-segmented style.

Also on this handbook - recommended hdl coding styles (http://www.altera.com/literature/hb/qts/qts_qii51007.pdf) in State Machines chapter (page 61)

I found recommendation - "Separate the state machine logic from all arithmetic functions and data paths,

including assigning output values."

So however what is the right way? I currently use one-segmented style, but facing near 95% logic usage is interested in variants of better area utilization.