Just wanted to concur with Chris on this. The two flip-flops do count like this:
00 10 11 10 ... etc., and the waveforms for H01 and H02 are correct.
The piggy-backed nor gates that generate H01 and H02 threw me though,
since they seem unnecessary. My best guess...these signals feed a lot of
inputs, so they need to drive more current with the bigger one and retain a
fast response with the smaller one.
If someone gets these drawings scanned in, I will find a place to host them.
I can put them up at my website for starters. Damn you people for teasing
me with your schematic snippets :)
-Frank
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