1228331 ECU Processor

[steve ravet]

I made a very rudimentary P4 memory map based on some information from
Ludis and a couple others in the archives.  You can find it on the gmecm
WWW page, under ECM info, then P4 memory map.  Is that ECM a P4?  If so
it is a "GM special" processor, with a different memory map, and at
least a couple instructions left out.

--steve

"Malcolm Robb, LC 0112G" wrote:
> 
> Hi again,
> I'm in the middle of dissassembling my EPROM into HC11 assembler using the
> tools on the ftp site. However, I can't make sense of some of the
> processors internal periperal registers. I have downloaded a couple of data
> sheets from the Motorola web site, but so far, none of them look right. The
> problem is there are dozens of variants of HC11, and each data sheet is
> several megabytes long (one is 17MB) , so it could take me till Christmas
> to download them all to find the one I want.
> 
> So does anyone know the exact processor type in the 1228331 ECU is ? Or if
> it's a 'GM special' is there one commercially available version of the HC11
> that most closley resembles it ?
> 
> TIA
> Malcolm Robb, LC 0112G


-- 
Steve Ravet
steve.ravet at arm.com
ARM,Inc.
www.arm.com
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