6502.org Forum  Projects  Code  Documents  Tools  Forum
It is currently Fri Nov 22, 2024 12:27 am

All times are UTC




Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Thu Dec 11, 2003 11:44 am 
Offline

Joined: Sat Nov 22, 2003 7:55 am
Posts: 2
Seeking 8726 Commodore DMA controller pinouts. The web has a scarcity of information on the hardware aspect of the chip. There is plenty of info on the software operation.
Seems the chip was subcontracted out to another chip manufacurer.
Any hardware info would be appreciated.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Wed Dec 17, 2003 1:47 pm 
Offline

Joined: Wed Dec 17, 2003 1:42 pm
Posts: 2
Location: germany
Hi Gordon,

the MOS 8726 was used in the 1750/1764 Ram Expansion. You can find a schematic of this on http://staff.washington.edu/rrcc/uwweb/1750 .
I hop that information will help. :wink:

Good luck,
Paul


Top
 Profile  
Reply with quote  
PostPosted: Sun Jan 27, 2019 2:09 pm 
Offline

Joined: Mon Sep 14, 2015 8:50 pm
Posts: 112
Location: Virginia USA
In searching DMA I found this thread. The link is mostly dead. I was able to retrieve these pages though...

Cheers,
Andy

Attachment:
COVER.GIF
COVER.GIF [ 10.95 KiB | Viewed 1551 times ]

Attachment:
PAGE1.GIF
PAGE1.GIF [ 24.18 KiB | Viewed 1551 times ]

Attachment:
PAGE2.GIF
PAGE2.GIF [ 68.99 KiB | Viewed 1551 times ]

Attachment:
SCHEM-L.GIF
SCHEM-L.GIF [ 71.7 KiB | Viewed 1551 times ]

Attachment:
SCHEM-M.GIF
SCHEM-M.GIF [ 80.02 KiB | Viewed 1551 times ]


Attachments:
SCHEM-R.GIF
SCHEM-R.GIF [ 71.63 KiB | Viewed 1551 times ]
Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 15 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to: