Write Address Detailed Functions

AUDF0 (AUDF1)

These addresses write data into the audio frequency divider registers.

                D4  D3 D2  D1 D0  30KHz divided
                                  by
                0   0  0   0  0   no division
                0   0  0   0  1   divide by 2
                0   0  0   1  0   divide by 3
                ..  .. ..  .. ..  ...
                .   .  .   .  .
                1   1  1   1  0   divide by 31
                1   1  1   1  1   divide by 32

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