Hitachi 6309


Hitachi 6309

(processor)(HD6309) Hitachi's version of the Motorola 6809 microprocessor. Compatible with the 6809, it addedtwo new eight-bit registers that could be added to form asecond 16-bit register, and all four eight-bit registers couldform a 32-bit register. It also featured division, and some32-bit arithmetic and was generally 30% faster in native mode.This information, surprisingly, was never published byHitachi.

Technical reference.