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 Post subject: MMC3 clone labeled 88
PostPosted: Tue Dec 26, 2017 2:02 pm 
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Joined: Sat Jul 04, 2015 9:58 am
Posts: 618
Location: -29.794229 -55.795374
Finally I could have a timeframe enough to finish my MegaMan 4 repro!

Some pictures of the monstruosity:
Attachment:
File comment: MM4 Comp
e273da01-1eda-4078-80f9-3ca0283d0070.jpg
e273da01-1eda-4078-80f9-3ca0283d0070.jpg [ 200.93 KiB | Viewed 283 times ]

Attachment:
File comment: MM4 Solda
ff4c60b6-5ee4-4a26-8412-3595c74638fc.jpg
ff4c60b6-5ee4-4a26-8412-3595c74638fc.jpg [ 207.03 KiB | Viewed 283 times ]

Altough very similar to the stock MMC3, I couldn't find this clone's pinout anywhere.
So, I think it would be nice to share it here:
Code:
                  .--\/--.             
   (r) CHR A13 <- |01  40| <- PPU A10 (f)
   (r) CHR A14 <- |02  39| <- PPU A11 (f)
   (r) CHR A12 <- |03  38| <- PPU A12 (f)
 (f) CIRAM A10 <- |04  37| -> CHR A10 (r)
   (r) CHR A15 <- |05  36| -> CHR A16 (r)
   (r) CHR A17 <- |06  35| -> CHR A11 (r)
      (f) /IRQ <- |07  34| -> PRG RAM /WE (w)
   (f) /ROMSEL -> |08  33| -> PRG RAM +CE (w)
           GND -- |09  32| -- GND
       (f) R/W -> |10  31| <- CPU D3 (fr)
   (r) PRG A15 <- |11  30| <- CPU D2 (fr)
   (r) PRG A13 <- |12  29| <- CPU D4 (fr)
   (f) CPU A14 -> |13  28| <- CPU D1 (fr)
   (r) PRG A16 <- |14  27| <- CPU D5 (fr)
   (r) PRG A18 <- |15  26| <- CPU D0 (fr)
   (f) CPU A13 -> |16  25| <- CPU D6 (fr)
   (r) PRG A17 <- |17  24| <- CPU A0 (fr)
   (r) PRG A14 <- |18  23| <- CPU D7 (fr)
   (r) PRG /CE <- |19  22| -> PRG RAM /CE (w)
           VCC -- |20  21| <- M2 (f)
                  '------'             

The small IC is a demux I made with an LS00, and yes, the IC is labeled "LS00":
Attachment:
File comment: LS00
07af0a06-8dfc-4ced-9e77-5dafc4026b48.jpg
07af0a06-8dfc-4ced-9e77-5dafc4026b48.jpg [ 8.56 KiB | Viewed 283 times ]


Hope this can help someone else in the future!


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PostPosted: Thu Dec 28, 2017 7:03 pm 
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Joined: Sun Jun 12, 2011 12:06 pm
Posts: 296
Location: Poland
I've found it in Super Mario Bros 5 (SMB3 hack). WRAM +CE and /WE from your schematics are reversed.

Image Image Image Image


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PostPosted: Fri Dec 29, 2017 4:38 am 
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Joined: Sat Jul 04, 2015 9:58 am
Posts: 618
Location: -29.794229 -55.795374
That's great! Thanks for the correction.
Could you please add this pinout to the wiki?


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