A Retro Motorola MC6850 ACIA Baud Rate Generator
Posted: Sun Nov 19, 2023 12:26 am
I was currently working on the design of my first I/O Card for the Minimalist Europe Card Bus.
As mentioned in an earlier post / video, my intention was to first make a purely Motorola based I/O card, to stay true to my first CPU Card, which is Motorola 6809 based.
Staying true to using the Motorola peripheral chips of the early 80’s, means we will also need a Baud Rate Generator circuit for the MC6850 Asynchronous Communication Interface Adapter chip (ACIA).
Join me as I describe my original 80’s Baud Rate Generator design, and then present (and test), my updated “3 component” Baud Rate Generator for my new MECB I/O Card design.
See the full post here: A Retro Motorola MC6850 ACIA Baud Rate Generator
As mentioned in an earlier post / video, my intention was to first make a purely Motorola based I/O card, to stay true to my first CPU Card, which is Motorola 6809 based.
Staying true to using the Motorola peripheral chips of the early 80’s, means we will also need a Baud Rate Generator circuit for the MC6850 Asynchronous Communication Interface Adapter chip (ACIA).
Join me as I describe my original 80’s Baud Rate Generator design, and then present (and test), my updated “3 component” Baud Rate Generator for my new MECB I/O Card design.
See the full post here: A Retro Motorola MC6850 ACIA Baud Rate Generator