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Internal Cycle

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An Internal Cycle is one in which a CPU is very busy; not accessing RAM, ROM, or doing I/O. The CLI opcode's second cycle, for example, is an internal cycle, which takes 6 master cycles.[3]

See Also

References

  1. https://problemkaputt.de/fullsnes.htm#snesapuspc700ioports
  2. definition (for the Game Boy Advance CPU notwithstanding), https://developer.arm.com/documentation/ddi0210/c/Memory-Interface/Bus-cycle-types/Internal-cycles
  3. https://forums.nesdev.org/viewtopic.php?p=256099&sid=baa27a1dbc6d0d86acd09298ae231b89#p256099
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