Sega SKC-1000C Saturn Bios and sub board bios dumps

Discussion in 'Sega Saturn Programming and Development' started by CoolMod, Oct 20, 2014.

  1. CoolMod

    CoolMod Robust Member

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    Got around to desoldering the main bios on the Saturn. Enjoy!

    Sega Saturn Bios:

    https://www.dropbox.com/s/e4pifh6nkz58av2/MPR-17450A.w04 <----Need to BYTE SWAP


    Sega Harmony Board:

    https://www.dropbox.com/s/dcxp4qv4fgyjj4h/01-HR-SE- Sega Harmony board

    Sega Modem Board:

    https://www.dropbox.com/s/sr55zb4wudkwcpe/IC9-DSP14.4736 Modem Board

    https://www.dropbox.com/s/ldrpdae65i8iyte/IC14-DSP.V1.62S Modem Board

    Sega Denon I/O Board:

    https://www.dropbox.com/s/65079yit9p0vxuy/IC451-v3.8-Denon IO Unit

    https://www.dropbox.com/s/ulr8fwqwa71zne9/IC452-v3.8-Denon IO Unit


    [​IMG]

    What's interesting to note is even though the PCB layout is quite different from a normal saturn, it still has spaces for the cart slot and mpeg slot. I'm sure they left the connectors out though due to space reasons.
     
    Last edited: Oct 21, 2014
  2. Druid II

    Druid II Officer at Arms

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    Well darnit you beat me to it. I had these sitting on my HD for almost a year now, I wanted to release them as an anniversary gift.

    edit: seems some of your dumps are earlier versions than the ones in my machine.
    - MPR-17450A: matches my dump.
    - Harmony Board IC3: matches my dump.
    - Modem IC14: matches my dump.
    - Modem IC9: you dumped DSP14 4736, I have DSP14 4747, the data is different.
    - Denon IO Unit: you dumped v3.8, I have v4.28, again the data is different. Also, note that you need to interleave the two chips together. Also, lol:

    [​IMG]

    I'll release those in time. Also, I also desoldered and dumped the SOIC roms.
     
    Last edited: Oct 21, 2014
  3. CoolMod

    CoolMod Robust Member

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    Ah, I was going to do those, but it looked to be a pain..so I held off hah. It's always great to find notes in the code lol..
     
    Last edited: Oct 21, 2014

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