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Version Code Register

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VC is 8 bits wide, located at 230Eh on the SA-1. It is supposed to indicate the SA-1 device version[1], but actually returns open bus:[2]

  • Reading $230E returns $23
  • Reading $80:230E returns $80

References

  1. 4.1.46 on page 1-4-35 of Book II of the official Super Nintendo development manual
  2. https://forums.nesdev.org/viewtopic.php?p=237540#p237540
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