Kontron SMARC-sAT30 - Manual (Page 38)

User’s Guide
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3.2.19 I2S Interfaces
The SMARC sAT30 module supports three off-Module I2S (DAP) interfaces. The default SMARC audio interface is I2S0
and the Kontron sAT30 bootloader implements this. The other I2S ports may be used for audio (if the bootloader is re-
configured for this) or may be used for other devices that accept an I2S interface.
I2S interface signals are exposed on the SMARC sAT30 edge connector as shown below:
SMARC sAT30 Edge finger NVIDIA T30 CPU Net Name Notes
Pin # Pin Name Pin # Pin Name
I2S0
S39 I2S0_LRCK C29 DAP2_FS DAP2_FS
Left& Right audio
synchronization clock
S40 I2S0_SDOUT G27 DAP2_DOUT DAP2_DOUT Digital audio Output
S41 I2S0_SDIN F27 DAP2_DIN DAP2_DIN Digital audio Input
S42 I2S0_CK C28 DAP2_SCLK DAP2_SCLK Digital audio clock
I2S1
S43 I2S1_LRCK R4 DAP3_FS DAP1_FS
Left& Right audio
synchronization clock
S44 I2S1_SDOUT M3 DAP3_DOUT DAP1_DOUT Digital audio Output
S45 I2S1_SDIN N3 DAP3_DIN DAP1_DIN Digital audio Input
S46 I2S1_CK R6 DAP3_SCLK DAP1_SCLK Digital audio clock
I2S2
S50 I2S2_LRCK AA24 DAP4_FS DAP0_FS
Left& Right audio
synchronization clock
S51 I2S2_SDOUT W28 DAP4_DOUT DAP0_DOUT Digital audio Output
S52 I2S2_SDIN AA29 DAP4_DIN DAP0_DIN Digital audio Input
S53 I2S2_CK AA26 DAP4_SCLK DAP0_SCLK Digital audio clock
Audio Master clock
S38 AUDIO_MCK C27 CLK1_OUT AUDIO_MCLK
Master clock output to Audio
codec