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:
  1. Raspberry Pi is a trademark of Raspberry Pi Trading.

The following table shows the I2S interface in 40-pin connector signal description.

Table 3-14. I2S Interface in 40-pin Connector Signal Description
Pin No.PIOSignal NameSignal Description
7PB25RPi_GPIO4_I2S_MCK/GPCLK0_PB25I2S Host Clock
12PB26RPi_GPIO18_I2S_BCLK_PB26I2S Clock
35PB15RPi_GPIO19_I2S_WS_PB15I2S Word Select
38PB16RPi_GPIO20_I2S_DIN_PB16I2S Data IN
40PB17RPi_GPIO21_I2S_DOUT_PB17I2S Data OUT