Kind of weird though, the 6809 was developed concurrent to the 68k, by an entirely different team at Motorola and its instruction set looked nothing like the 68

Kind of weird though, the 6809 was developed concurrent to the 68k, by an entirely different team at Motorola and its instruction set looked nothing like the 68000. The only thing they had in common was the "68" prefix and big-endian-ness. I guess there was also the ability to interface the 68k with 6800/6809 support chips on the bus, though. The 68000 was very VAX and PDP-11 inspired.