Sunsoft 4 pinout: Difference between revisions

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[[iNES Mapper 068|Sunsoft 4]]: 40-pin 0.6" PDIP
[[iNES Mapper 068|Sunsoft 4]]: 40-pin 0.6" PDIP
               .---\/---.
               .---\/---.
         M2 -> | 01  40 | -- +5V
         M2 -> | 01  40 | -- +5V
Line 29: Line 28:


Reference: [http://forums.nesdev.org/viewtopic.php?p=106818#p106818 Naruko's notes]
Reference: [http://forums.nesdev.org/viewtopic.php?p=106818#p106818 Naruko's notes]
Tengen's Sunsoft-4 seems to have a little modified pinout: [https://nescartdb.com/profile/view/326/after-burner]
.. |
31 | <- OR A (PPU /RD)
30 | <- OR B (PPU A13)
29 | -> (NC?)
28 | -> CIRAM /CS
27 | -> (NC?)
26 | -> goes to NOR gate CHR roms decoder
.. |
[[Category:Pinouts]]

Latest revision as of 16:41, 15 August 2022

Sunsoft 4: 40-pin 0.6" PDIP

             .---\/---.
       M2 -> | 01  40 | -- +5V
  /ROMSEL -> | 02  39 | <- R/W
  CPU A14 -> | 03  38 | <- CPU D6
  CPU A13 -> | 04  37 | <- CPU D5
  CPU A12 -> | 05  36 | <- CPU D4
 PPU /A13 -> | 06  35 | <- CPU D3
  PPU A12 -> | 07  34 | <- CPU D2
  PPU A11 -> | 08  33 | <- CPU D1
  PPU A10 -> | 09  32 | <- CPU D0
     ?GND -> | 10  31 | <- OR A (PPU /RD)
  PRG /CE <- | 11  30 | <- OR B (SS4 /CHRSEL)
  CHR A17 <- | 12  29 | -> OR Y (CHR /CS)
  CHR A16 <- | 13  28 | -> CIRAM /CS
  CHR A15 <- | 14  27 | -> SS4 /CHRSEL
  CHR A14 <- | 15  26 | -> WRAM /CE
  CHR A13 <- | 16  25 | -> PRG A14
  CHR A12 <- | 17  24 | -> PRG A15
  CHR A11 <- | 18  23 | -> PRG A16
  CHR A10 <- | 19  22 | -> PRG A17
      GND -- | 20  21 | -> WRAM +CE
             `--------'

10 probably actually some control, not a supply pin
19 also connects to CIRAM A10
29,30,31 actually just an OR gate; for use with a 28-pin 128KB CHR-ROM

Reference: Naruko's notes


Tengen's Sunsoft-4 seems to have a little modified pinout: [1]

.. |
31 | <- OR A (PPU /RD)
30 | <- OR B (PPU A13)
29 | -> (NC?)
28 | -> CIRAM /CS
27 | -> (NC?)
26 | -> goes to NOR gate CHR roms decoder
.. |