sneaking in a CMOS VCO

[Martin Czech]

> >
> >Well, how about "sneeking" in a CMOS VCO onto the wafer film then?
> >
> Wow, this is what we need, 'Easter Eggs' in chips!
> (to access the on-chip vocoder, hold all pins high for 30MS and toggle 
> pin 5 three times)
> 
> paul perry, destroying productivity on fab lines world-wide
> 
> 
No chance, you are allways short in test observability, thus
this mode is used for testing purposes since long ;->.

m.c.