here's the list . . . - test-drb@ccmp.vtda.org

24 Feb 1999

On Mon, 22 Feb 1999, Roger Merchberger &lt;zmerch(a)30below.com&gt; wrote:

...
  > BIOTECH
ELECTRONICS BCT800 graphics board - uses AMI 68047 chip and 12  
 Erm, sounds like that AMI chip is a clone of Motorola's 6847 VDG, which
 was
 used in Tandy's CoCo 1 & 2, and the MC-10.

 I wonder:

 1) if they're pin compatible,
 2) if they've got added functionality -- might be fun to play with in one
 of my CoCo's if there is!
  It's quite likely that AMI's 68047 is a clone of Motorola's 6847,
because
AMI used to supply pin-for-pin equivalents of a number of Motorola
6800-family devices, including the 6821 Peripheral Interface Adapter and the
6850 Asynchronous Communications Interface Adapter.  The 68047 and 6847 are
both 40-pin chips, but I don't have an AMI datasheet handy.

Arlen

--
Arlen Michaels     amichael(a)nortelnetworks.com