VideoCrypt controller 8052
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  Pin  Funct                   Connections and Functionality
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 1-8   P1.0-P1.7       Internal Bus connected to other chips and
                       pin 30-40 on MOTOROLA CPU
   9   RST             Pin 29 on MOTO CPU
  10   RxD/P3.0        N.C. (No Connection)
  11   TxD/P3.1        N.C.
  12   !INT0/P3.2      Card presence switch
  13   !INT1/P3.3      Pin 30 on MOTO CPU
  14   T0/P3.4         Pin 32 on MOTO CPU
  15   T1/P3.5         Pin 18 on MOTO CPU
  16   !WR/P3.6        N.C.
  17   !RD/P3.7        N.C.
  18   XTAL2           7 MHz Clk
  19   XTAL1           GND
  20   Vss             GND
  21   P2.0            Card Pad 2 : EEPROM Programming ????
  22   P2.1            N.C.
  23   P2.2            D input 74LS74, pin 12, Card Clk generator
  24   P2.3            D input 74LS74, pin  2, Card Clk generator
  25   P2.4            N.C.
  26   P2.5            N.C.
  27   P2.6            Pin 14 on MOTO CPU
  28   P2.7            N.C.
  29   !PSEN           N.C.
  30   ALE/!PROG       N.C.
  31   !EA/Vpp         N.C.
  32   P0.7            3.5 MHz Card Clk signal
  33   P0.6            Card Pad 6 : RST
  34   P0.5            Select CMD 21.0V supply, Card programming
  35   P0.4            Select CMD 12.5V supply, Card programming
  36   P0.3            Select CMD 15.0V supply, Card programming
  37   P0.2            ON CMD Vpp, Card programming
  38   P0.1            ON CMD Vcc Card
  39   P0.0            Card Pad 3 : I/O
  40   Vcc             +5V supply

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