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 +--------------+ [This information is part of the GIICM]