6809

6809 page on Wikipedia
6809 page on CPU-World
Pinout (DIP40)

6809, 6309
Motorola 6809 and Hitachi 63C09 CPU

      +------\/------+
  GND |1           40| /HALT
 /NMI |2           39| EXTAL
 /IRQ |3           38| XTAL
/FIRQ |4           37| /RST
   BS |5           36| MRDY
   BA |6           35| Q
  VCC |7           34| E
   A0 |8           33| /BREQ
   A1 |9           32| R//W
   A2 |10  MC6809  31| D0
   A3 |11  H63C09  30| D1
   A4 |12          29| D2
   A5 |13          28| D3
   A6 |14          27| D4
   A7 |15          26| D5
   A8 |16          25| D6
   A9 |17          24| D7
  A10 |18          23| A15
  A11 |19          22| A14
  A12 |20          21| A13
      +--------------+

Frequency: set reader to FREQ, put black probe to GND, red probe to 38 / 39 to measure CPU clock