P-4 or P-6?

Ken Kelly kenkelly at lucent.com
Tue May 4 00:53:18 GMT 1999


Ward,
	Does that mean that the 8051 and 1333 (94-95 LT1) are really considered P66
units?

		Ken

Ward wrote:
> 
> On Mon, 03 May 1999 11:46:54 -0400, Ken Kelly wrote:
> P66 is the dual proc ver. 1st used in Cad Nothstar.
> Ward
> 
> > Gothcha,
> >       This really says that P6 means Processor # 6 or the HC11F1.
> > There are really major architecture differences going from
> > 93 to 94 in the LT1 PCM's, but they do keep that processor,
> > only double them up!!
> >
> >       I haven't played with the 97 PCM's. 93-96 is all I have
> > looked at.
> >
> > "David A. Cooley" wrote:
> > >
> > > At 07:54 PM 5/2/99 -0400, you wrote:
> > > >I'm getting confused here! How can all these configurations be
> considered P6.
> > > >
> > > >       I"m working on the 94-95 LT1 (8051) computer. It is the HC11F1
> based and uses
> > > >two 512K Flash proms. The 96-97 PCM is nearly Identicle on the E side
> but
> > > has a
> > > >1024K flash on the T side. I thought this was also a P6, the E side is
> very
> > > >similar to the 94-95, with very similar tables located only 30 to l00
> bytes
> > > >different from the 8051.
> > > >
> > > >       The 92 mentioned with a 27128 Eprom sounds like a very different
> beast. I
> > > know
> > > >the 93 LT1 PCM was an older Batch Fire design with EProm, not Flash,
> and a
> > > >single processor.
> > > >
> > > >       What really makes a P6? I assumed it was Flash memory and Two
> processors that
> > > >seperated them from the P4's.
> > >
> > > Nope.. GM calls mine a P6... It's a single processor (though there is a
> > > "timing chip" that appears to be a 2nd processor of sorts), single
> board,
> > > EPROM based PCM.  According to GM, P6 refers to the type of
> processor...
> > > the HC11F1 is designated P6 by them, but they also state that it was
> > > discontinued in 96, so I'm confused... Possibly the newest is a variant
> of
> > > the F1 and it's a P7 or P8?
> > > ===========================================================
> > >            David Cooley N5XMT           Internet: N5XMT at bellsouth.net
> > >      Packet: N5XMT at KQ4LO.#INT.NC.USA.NA   T.A.P.R. Member #7068
> > >    Sponges grow in the ocean... Wonder how deep it would be if they
> didn't?!
> > > ===========================================================
> 
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