Pi I2S Clock Divide Register
From SpecNext official Wiki
| Number | $A3 |
|---|---|
| Readable | Yes |
| Writable | Yes |
| Short Description | Pi I2S clock divide in master mode. |
bits 7:0 = Clock divide sets sample rate when in master mode (soft reset = decimal 11)
clock divider = 538461 / SampleRateHz - 1
i.e. SampleRateHz = 538461 / (clock divider + 1)
The default value corresponds to ~44871Hz sample rate.