44.6.9 Holding Registers
The I2SMCC user interface includes two common holding registers—the Receive Holding Register (I2SMCC_RHR) and the Transmit Holding Register (I2SMCC_THR). The common registers are used to access audio samples for all audio channels.
Each I2S or TDM channel has its own register. The register depth depending on the configuration is available in the following table.
| I2SMCC_MRA.FORMAT | I2SMCC_MRA.NBCHAN | Register Depth |
|---|---|---|
| 0 or 1 (I2S or LJ) |
NA | 4 words |
| 2
or 3 (TDM or TDMLJ) |
0 or 1 | 4 words |
| 2 or 3 | 2 words | |
| 4, 5, 6 or 7 | 1 word |