Talk:MultiTap

From SnesWiki

[edit] Schematic

According to "SNES MultiPlayer 5 - Schematic Diagram (Rev 2.3) 1st May 1992" (found in book2.pdf), the thing should work as shown below (though no idea if Nintendo or any other companies ever produced that circuit exactly like that, or if they did modify the design & functionality, or if they replaced the components by single chip or so). I couldn't find any photos of multitap PCBs... I almost wonder if anybody ever disassembled a multitap. nocash --77.6.180.221 23:40, 2 June 2011 (UTC)

             _________                            _________
            |74HCT4053|                          | 74HC241 |
            |         |               /MODE5P--->|/OE      |
    ??? --->|VEE   /EN|<------STB--------------->|IN    OUT|---> STB'BCD
            |  _ _ _  |                 STB'A--->|IN    OUT|---> DETECT
 IO'SEL --->|SELX   X1|------>CLK1-------------->|IN    OUT|---> CLK'B
    CLK --->|X _ _ _X0|------>CLK0-------------->|IN _ _OUT|---> CLK'CD
 IO'SEL <---|SELY   Y1|<-------------------------|OUT    IN|<--- IN0'A
    IN0 <---|Y _ _ _Y0|<-------------------------|OUT    IN|<--- IN0'C
 IO'SEL <---|SELZ   Z1|<-------------------------|OUT    IN|<--- IN01
    IN1 <---|Z      Z0|<-------------------------|OUT    IN|<--- IN0'D
            |         |                  ??? --->|OE       |
            |_________|                          |_________|
             _________                            _________
            | 74HC126 |                          |4-Channel|
    CLK --->|IN    OUT|---> CLK1         VCC --->|2P Switch|---> /MODE5P
  STB'A --->|OE _ _   |                  GND --->|5P _ _ _ |
   CLK1 --->|IN    OUT|---> CLK'A        GND --->|2P       |---> VCC'BCD
    ??? --->|OE _ _   |                  VCC --->|5P _ _ _ |
    STB --->|IN    OUT|---> STB'A      IN1'A --->|2P       |---> IN01
    ??? --->|OE _ _   |                IN0'B --->|5P _ _ _ |
    GND --->|IN    OUT|---> IN1         IO'A <---|2P       |<--- IO
 DETECT --->|OE       |               IO'SEL <---|5P       |
            |_________|                          |_________|
  __________________________________________
 |   (Female)(............Male.............)|     GND ------[10K]----- DETECT
 |Pin SNES   PORT2   PORT3   PORT4   PORT5  |     VCC ------[10K]----- IO'SEL
 |1   VCC    VCC     VCC'BCD VCC'BCD VCC'BCD|     VCC ------[10K]----- CLK1
 |2   CLK    CLK'A   CLK'B   CLK'CD  CLK'CD |     VCC ------[10K]----- CLK0
 |3   STB    STB'A   STB'BCD STB'BCD STB'BCD|     VCC ------[10K]----- IN0'A
 |4   IN0    IN0'A   IN0'B   IN0'C   IN0'D  |     VCC ------[10K]----- IN01
 |5   IN1    IN1'A   -       -       -      | VCC'BCD ------[10K]----- IN0'C
 |6   IO     IO'A    -       -       -      | VCC'BCD ------[10K]----- IN0'D
 |7   GND    GND     GND     GND     GND    | VCC'BCD --<LED|--[220]-- VCC
 |__________________________________________| VCC'BCD --------||------ GND