3.4.5 Inter-IC Sound Multi-Channel Controller (I2SMCC) Interface
The SAM9X75D2G has native support for Inter-IC Sound Controller (I2SMCC) and provides a 5-wire, bidirectional, synchronous, digital audio link to external audio devices.
With the purpose of enabling the user to test this feature, the SAM9X75-Curiosity board has the I2S signals in the 40-pin connector (J27). Many Raspberry Pi(1) Hats with I2S are available.
Note:
- Raspberry Pi is a trademark of Raspberry Pi Trading.
The following table shows the I2S interface in 40-pin connector signal description.
| Pin No. | PIO | Signal Name | Signal Description | ||
|---|---|---|---|---|---|
| 7 | PB25 | RPi_GPIO4_I2S_MCK/GPCLK0_PB25 | I2S Host Clock | ||
| 12 | PB26 | RPi_GPIO18_I2S_BCLK_PB26 | I2S Clock | ||
| 35 | PB15 | RPi_GPIO19_I2S_WS_PB15 | I2S Word Select | ||
| 38 | PB16 | RPi_GPIO20_I2S_DIN_PB16 | I2S Data IN | ||
| 40 | PB17 | RPi_GPIO21_I2S_DOUT_PB17 | I2S Data OUT | ||