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== Sound Chip ==
== Sound Chip ==
The AY-3-8912 used in the TS2068 and TC2068 is controlled by two I/O ports:
The [[AY-3-8912]] used in the TS2068 and TC2068 is controlled by two I/O ports:
OUT (0xf5) - Select a register 0-14
OUT (0xf5) - Select a register 0-14
IN (0xf6) - Read the value of the selected register
IN (0xf6) - Read the value of the selected register
