1226864 Memory locations & ports

[Teller.John at orbital.com]

Ludis:

I have figured out the following locations in the 1226864 ECM:

Engine Control:     C800, C802, C804, C806 ... C83E
A/D:      D000 (Data), D002 (Control)
PROM:          E000 - EFFF
ROM:      F000 - FFFF

Questions:

1.  Does the GM-special 6801 have any of the on-board peripherals that the
Motorola part had, and if so, are the locations of the ports the same?  If
not, do you have the map?

2. Do you have any data on the Engine Control chip?  There seems to be
quite a bit going on in there!

Thanks!
--- John Teller