[time-nuts] HP8568B firware eproms anyone ?

John Miles jmiles at pop.net
Thu Oct 19 20:52:16 EDT 2006


Doh, never mind that, I'll bet that the 68000 is going to want to fetch 16
bits at a time, or maybe 32.

-- john, KE5FX

> -----Original Message-----
> From: John Miles [mailto:jmiles at pop.net]
> Sent: Thursday, October 19, 2006 5:50 PM
> To: Discussion of precise time and frequency measurement
> Subject: RE: [time-nuts] HP8568B firware eproms anyone ?
>
>
> Actually, since each EPROM is now 4x bigger than necessary,
> couldn't you do all this with just one chip?  The circuit must be
> decoding a couple of high-order address lines to drive the
> chip-select pins of the other three EPROMs, so you'd just tie
> those two address lines to the unused address pins of your new EPROM.
>
> -- john, KE5FX
>
>
> >




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