dos electronics software? - test-drb@ccmp.vtda.org

25 Aug 2004

Hmm, I tried to post this yesterday ... probably something went wrong..
I am looking for a 63C09E or 63B09E. Anybody knows where I can buy it??
I found a source in Australia, but that is the 63B09.  The suffix "E"
is important, it is the *external* clock version, as used in the Core
Board of the Blinkenlight project (40 pin DIL case).
I have a PDP-8/e simulation running on th Core board, but could use
a performance increase. Upgrading to the Motorola "B" parts will allow
to double the clock frequency, but the Hitachi 63B09 is even faster,
as it does many 6809 instructions in less cycles.
Interested in the sim?  Check my 'Homebrew PDP-11' page, the link there
is "spin off" ...

- Henk,
  www.pdp-11.nl

...
  -----Original Message-----
 From: cctalk-bounces(a)classiccmp.org
 [mailto:cctalk-bounces@classiccmp.org]On Behalf Of ben franchuk
 Sent: donderdag 26 augustus 2004 5:21
 To: On-Topic and Off-Topic Posts
 Subject: Re: dos electronics software?

 Ethan Dicks wrote:
  On Wed, Aug 25, 2004 at 03:17:34PM -0400, Roger
Merchberger wrote:

>Also, if you're looking for something "more updated"   there's
always the 
 >Hitachi 63C09 - it's 4 Mhz, and has more
registers, a   16-bit integer 
 >multiply (with a 32-bit result) and clock for
clock is   faster than the 6809.

 Is it pin-compatible with the 6809?

 -ethan

 Off hand I think it is pin compatable since it was a 6809 
 replacement part.
 The gota is the hardware designers upgraded the core 
 instruction set to
 switch instruction sets from the 'Motorola 6809' to the 
 'Enhanced 6809' mode
 with a mode changing instuction.Since they had a license to sell only 
 6809 parts
 this information was never documented other than hardware 
 hackers on the 
 internet.
 More information can be found here.
 http://www.concentric.net/~Alxevans/index.html