> I am not getting away from powering on, but I can avoid testing in that > situation by resetting on a watchdog timer. But are you telling me > that uPs in general _presume_ a power up reset even when the reset might > be from the watchdog? Bah! > > > > Then I would have a high on the reduced cpu clock ( 'E' or pin 64 on > > > the HD6303XP & HD6303YP) until the xtal was set going. The time
> Then I have to presume the integrity of the address bus. If I can't get > 0x0000 hex on the address bus, I can't begin. The 6303 will fetch a two byte word from FFFE and jump to that location, on reset. RAM is at zero. As I recall, been a long time. I don't think I have any of the data sheets left here. -- � � � � � � � � � � http://www.softwaresafety.net/ � � � �http://www.unusualresearch.com/ http://www.bpaddock.com/ -- Author: Bob Paddock INET: [EMAIL PROTECTED] Fat City Hosting, San Diego, California -- http://www.fatcity.com --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
