Core memory emulator using non volatile ram.

[Anders Nelson]

If you want the real deal you can always make a driver out of a bunch of
H-bridge ICs and an old core plane. I'll skip suggesting you weave your own
core...

On Sat, Dec 15, 2018, 2:01 PM systems_glitch via cctalk <
cctalk at classiccmp.org wrote:

> Chuck,
>
> FRAM is destructive read on the die, from what I understand. It's just that
> the onboard controller takes care of it for you, much like a core
> subsystem.
>
> Thanks,
> Jonathan
>
> On Sat, Dec 15, 2018 at 1:55 PM Chuck Guzis via cctalk <
> cctalk at classiccmp.org> wrote:
>
> > On 12/15/18 10:01 AM, Guy Sotomayor Jr via cctalk wrote:
> > > FRAM or MRAM.  I make extensive use of them in my projects.
> > >
> > > Everspin has a few (all SMT and 3.3v).  As I recall they run ~$20/ea
> for
> > 4Mb (512K x 8 or 256K x 16).
> >
> > As neither MRAM nor FRAM requires a write-after-read refresh, I fail to
> > see the "realism" in this that couldn't be satisfied with simple
> > battery-backed RAM or even flash-backed RAM.
> >
> > Yes, MRAM is magnetic, but ti's not the same principle as real core.
> >
> > FWIW,
> > Chuck
> >
> >
>