*[http://nostalgies.thomsonistes.org/thomson_saga.pdf an interesting pdf file in French to explain all of this.]
*[[Media:MC6809 HMOS 8 Bit Microprocessor (Motorola).pdf|Motorola MC6809 CPU datasheet]] (only on first generation TO7)
*[[Media:6809E CPU datasheet.pdf|Motorola MC6809E CPU datasheet]]