 Most other computers of the time with more than 64 KB of memory addressing were limited to bank switching where much if not all the 64 KB was simply swapped for another section of memory, although in the case of the 6809, Motorola offered their own MC6829 MMU design mapping 2 mebibytes (2×220 byte) in 2 KB pages.The very first Macintosh prototype, wire-wrapped by Burrell Smith, contained a 6809.The 6809 was used in the mid-1980s through the early 2000s in Motorola SMARTNET and SMARTZONE Trunked Central Controllers (so dubbed the "6809 Controller").