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Thread: Cartridge to console bandwidth

  1. #1
    Hedgehog-in-Training Hedgehog-in-TrainingWildside Expert McValdemar's Avatar
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    Default Cartridge to console bandwidth

    Hi everyone.
    Reading on SEGA Retro about the cartridges, is reported:

    https://segaretro.org/Mega_Drive_cartridges

    "Cartridge ROM bandwidth: 10 MB/s (most cartridges), 15.20097815.340906 MB/s (some cartridges)"

    And I was curious to understand HOW some cartridges could have such higher bandwidth.
    Anyone know?

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    Hedgehog-in-Training Hedgehog-in-TrainingWildside Expert zborgerd's Avatar
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    See right above it:

    Cartridge ROM chips: 16‑bit[5]

    Most cartridges: MROM, 5 MHz, 200 ns cycles[6][7][8]
    Some cartridges: MROM/EPROM, 7.670453 MHz (NTSC), 7.600489 MHz (PAL), 130131 ns cycles[7][4][9]

  3. #3
    Hedgehog-in-Training Hedgehog-in-TrainingWildside Expert McValdemar's Avatar
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    You are right. The answer was sitting right in front of me.
    Thanks anyway for helping noticing it!

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