Maybe the SmartSocket isn't what I wanted. Somewhere in the "pit" I've got a
Dallas socket that has a 3-volt battery in the bottom. It's potted in place but
provides 3 volts on pin 24, (maybe pin 28, but the upper left corner, anyway) in
this case and does nothing but provide power to keep the content of the resident
IC intact, and, maybe, gate the write signal off until the power is stabile. I
do believe there's no continuity between the write pin on the resident IC and
the corresponding socket pin, so something's going on. That sort of device
might work, don't you think? Next time I'm at the Dallas web site I'll try to
find the socket and let you know what the appropriate nomeclature is.
Dick
----- Original Message -----
From: "Pete Turnbull" <pete_at_dunnington.u-net.com>
To: <classiccmp_at_classiccmp.org>
Sent: Friday, May 18, 2001 1:43 AM
Subject: Re: Slicing open the top of a 48T02 Sun Sparc chip to replace battery
is that thing hollow or filled with epoxy?
> On May 17, 19:34, Richard Erlacher wrote:
>
> > Has anybody tried one of the DALLAS "smart socket" products with this
> thingie?
>
> Unfortunately the 48T02 is a TOD clock and calendar as well as NVRAM, so
> there's no suitable SmartSocket to replace it. The registers have to be at
> particular places and use a particular protocol too.
>
>
>
> --
> Pete Peter Turnbull
> Network Manager
> University of York
>
>
Received on Fri May 18 2001 - 23:38:52 BST