HP9816 PAL16L8

[dwight]

I couldn't see remoting my self more from the design. The JEDIC file is specified, the fuses are numbered why do we need the added steps.
I was told the same thing, that there was no way other than to use a PAL compiler.
If you really want to confuse things, try using a PALASM or such to move from positive logic to negative logic.
Another use for the tristate is to make an OC output.
Dwight

________________________________
From: Brian L. Stuart <blstuart at bellsouth.net>
Sent: Tuesday, June 11, 2019 10:44 AM
To: Paul Berger; General Discussion: On-Topic and Off-Topic Posts; dwight
Subject: Re: HP9816 PAL16L8

On Tue, 6/11/19, dwight via cctalk <cctalk at classiccmp.org> wrote:
> When I needed to create a PAL from a schematic, I first made
> a schematic of what the PAL was suppose to do, using the
> same basic model of logic that the PAL provided. Once I was
> done, I took the PAL map from the TI book and made red dots
> on each of the connections I needed. I'd then go back

I thought I was the only one!  Back when I first used a PAL, I
also photocopied the page from the databook, marked up
the connections I wanted, and then asked my coworkers
how to get that programmed into the device.  It was pretty
annoying to learn I had to convert it to equations first.  It
seemed like a pointless extra step when the software was
just going to turn around and turn the equations back into
the matrix wiring I had just marked up.

BLS