5.3.11 I2S Signals
The ATSAME54P20A has a built in two channel Inter-IC Sound Controller (I2S).
There is no on-board IC connected to this module, but the signals are available on the different pin-headers on the kit as shown in the table below.
| Microcontroller Pin | I2S Signal | Pin-Header Location | On-board Shared |
|---|---|---|---|
| PB16 | SCK0 | EXT2 pin 14 | |
| PB17 | MCK0 | EXT2 pin 13 | |
| PA20 | FS0 | Camera pin 121) | SDCARD MCCDA |
| PA21 | SDO | Camera pin 111) | SDCARD MCCK |
| PA22 | SDI | EXT1 pin 11 / Camera pin 101) | |
| PA23 | FS1 | EXT1 pin 12 / Camera pin 91) | |
| PB28 | SCK1 | EXT1 pin 15 | |
| PB29 | MCK1 | EXT1 pin 17 |
Info:
1) Soldering is required to connect these pins to the camera connector. The resistor footprint R205, R206, R207, and R208 have to be populated by 0-ohm resistors. The location of the footprints can be found in the Kit Modifications chapter.
Info: The
I2S module can use more pins than listed in the table above. These
signals are not listed in the table as they are shared with the on-board QSPI Flash and
CAN transceiver.