7730 addresses

[Pat Ford]

Thanks Ludis thats a great help, BTW your schematic site is great!! 

Previously, you (Ludis Langens) wrote:
> Pat Ford wrote:
> > 
> >  there is a bunch of activity in the 0x0000 to 0x0ofc are ( sram I believe)
> > any idea of the layout of that area?
> 
> Yes, 0x0000 through 0x01ff is all SRAM.  The first half (from 0x0000
> through 0x00ff) is retained by the "memory keep alive" ECM power input.
> 
> > then again at 0x3FC2, 0x3FC8, 0x3FE0
> 
> That's the 45148 timer chip.  It handles the ignition timing input &
> output, injector timing, several PWM outputs, and a few other features.
> 
> > 0x5000 0x5013 and 0x501b
> 
> There's nothing there normally.  It's for the HUD calibrator which plugs
> onto the ECM via the big edge card connector.
> 
> 
> David Cooley wrote:
> >
> > The port IO map will be the same as a standard HC11F1...  The map Ludis 
> > posted I believe was at 0x4000 due to the PROM mapping in at 0x4000.
> 
> The '7730 does _not_ use an HC11F1.  The MPU used in the '7730 hard
> decodes the PROM to 0x8000 through 0xffff.  The MPU's onchip peripherals
> are hard configured to 0x4000 through 0x4000f.  The unused locations
> 0x400d through 0x400f read as zero.  Nothing drives the bus at 0x4010
> and up.
> 
> -- 
> Ludis Langens                               ludis (at) cruzers (dot) com
> Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
> 

--
Pat Ford                           email: pford at qnx.com
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