MediaWiki:Sitenotice
2026-03-12: Cocopedia.com is now using a new caching system that should make things faster. Please let me know if you encounter any new issues.

2026-03-15: MediaWiki has been reinstalled and the old database and files restored. It was pretty clogged up from being upgraded so many times since 2004. I am also testing out Cloudflare to see if it can prevent the 'bot assaults that took the site down last year.

2026-03-16: Special thanks to Don Barber for hosting a backup mirror of CoCopedia: https://cocopedia.dgb3.net

Motorola 6847: Difference between revisions

From CoCopedia - The Tandy/Radio Shack Color Computer Wiki
Jump to navigationJump to search
Barberd (talk | contribs)
159 edits
VisualWikitext
Created page with "The MC6847 is a video display generator chip that is designed for the 6800 family of microprocessors. It reads data from memory (via the SAM chip) and displays the conten..."
 
Barberd (talk | contribs)
159 edits
Redirected page to Video Display Generator
Tag: New redirect
 
(5 intermediate revisions by 3 users not shown)
Line 1: Line 1:
The MC6847 is a video display generator chip that is designed for the 6800 family of microprocessors.  It reads data from memory (via the [[SAM]] chip) and displays the contents on screen.  The 6847 is used on Coco 1 and 2's only; this function was replaced by the custom [[GIME]] chip in Coco 3 models.
#REDIRECT [[Video Display Generator]]
 
The chip provides a 32x16 alphanumeric display, or graphic displays up to 256x192 pixels in resolution.  Additionally, a variety of "semigraphics" modes are provided.
 
On the Coco, the familiar dark-green on light-green text is generated as a fundamental function of this chip.
 
In Coco 1's and most Coco 2's, the 6847 is not capable of displaying lowercase.  Instead, lower case text appears inverted.  Later Coco 2's replaced the 6847 with a 6847T1 that can display proper lower case text.

Latest revision as of 15:58, 14 April 2026

Redirect to:

Retrieved from "https://www.cocopedia.com/wiki/index.php?title=Motorola_6847&oldid=12030"