Um82c11

Printer Adapter Interface (PAI)

Pinout

DIP40
         +---\/---+
      X1 | 1    40| Vdd
      X2 | 2    39| A1
     CLK | 3    38| A0
    DCLK | 4    37| P0
     RST | 5    36| P1
    *IOW | 6    35| P2
    *IOR | 7    34| P3
     DIR | 8    33| P4
      D0 | 9    32| P5
      D1 |10    31| P6
      D2 |11    30| P7
      D3 |12    29| *ERROR
      D4 |13    28| SLCT
      D5 |14    27| PE
      D6 |15    26| *ACK
      D7 |16    25| BUSY
     IRQ |17    24| *STROB
     *CS |18    23| *AUTOFD
    *POE |19    22| *INIT
     Vss |20    21| *SLCT
         +--------+

Frequency

DIP64
Set reader to FREQ, put black probe to GND, red probe to 1 and to 2 to measure CPU clock

Files

• 

  UM 82C11 Datasheet