[Coco] 80-column cartridge for CoCo 1/2?

[Willard Goosey]

On Sat, Oct 27, 2012 at 02:04:14PM -0400, Gene Heskett wrote:
> On Saturday 27 October 2012 14:01:05 Juan Castro did opine:
> > manufactured one, cloned from an American product. IIRC it used a 6845.

> recall what chip was in it ATM.  6850 doesn't ring any real loud bells to 

6845 is a dumb-ish CRT controller used in a lot of monochrome <=
80-column screens (terminals, Model III, Kaypro, etc) including at
least some of the coco 80-column paks.  

6850 is a UART that coco people usually only used for MIDI paks, not
sure why the 6551 was preferred for RS232.

Willard
-- 
Willard Goosey  goosey at sdc.org
Socorro, New Mexico, USA
I search my heart and find Cimmeria, land of Darkness and the Night.
  -- R.E. Howard