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(Placeholder summary for now.)

The SPB640 Speech FIFO has three main purposes:

  • Interface the SP0256-012 to the Intellivision's bus.
  • Provide a 64x10-bit FIFO for speech data for the SP0256-012 to play.
  • Provide decoding and buffering for a separate 8-bit expansion bus that could be used for other peripherals, such as the canceled-in-development wireless hand controllers.