💾 Archived View for gemini.spam.works › mirrors › textfiles › hacking › CABLE › decoder-.pin captured on 2022-07-17 at 01:53:48.

View Raw

More Information

⬅️ Previous capture (2022-06-12)

-=-=-=-=-=-=-

			VideoCrypt controller 8052
			**************************

   Pin	Funct			Connections and Functionality

	
*****************************************************************************


  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


	
*******************************************************************************