Audio; Digital Interface (Sai) - Boardcon Embedded Design PICO-IMX8M-MINI Reference User Manual

Support up to 4 data lanes
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Support 80Mbps - 1.5Gbps data rate in high speed operation
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MIPI CSI signals
Signal Description
CSI_DP0 MIPI-CSI data0 diff-pair Positive
CSI_DN0 MIPI-CSI data0 diff-pair Negative
CSI_DP1 MIPI-CSI data1 diff-pair Positive
CSI_DN1 MIPI-CSI data1 diff-pair Negative
CSI_DP2 MIPI-CSI data2 diff-pair Positive
CSI_DN2 MIPI-CSI data2 diff-pair Negative
CSI_DP3 MIPI-CSI data3 diff-pair Positive
CSI_DN3 MIPI-CSI data3 diff-pair Negative
CSI_CKP MIPI-CSI clock diff-pair Positive
CSI_CKN MIPI-CSI clock diff-pair Negative

2.3 Audio

2.3.1 Digital Interface (SAI)

Five synchronous audio interface (SAI) modules supporting I2S, AC97, TDM, codec/DSP, and DSD
interfaces, including one SAI with 8 Tx and 8 Rx lanes, one SAI with 4 Tx and 4 Rx lanes, two SAI with 2
Tx and 2 Rx lanes, and one SAI with 1 Tx and 1Rx lane. Support over 20 channels of audio subject to I/O
limitations. 8-Channel Pulse Density Modulation (PDM) input.
Signal Description
SAI1_RXD0 SAI1 Receive data0
SAI1_RXD1 SAI1 Receive data1
SAI1_RXD2 SAI1 Receive data2
SAI1_RXD3 SAI1 Receive data3
SAI1_RXD4 SAI1 Receive data4
SAI1_RXD5 SAI1 Receive data5
SAI1_RXD6 SAI1 Receive data6
SAI1_RXD7 SAI1 Receive data7
SAI1_RXC SAI1 Receive bit clock
SAI1_RXFS Receive frame sync
SAI1_TXD0 SAI1 Transmit data0
SAI1_TXD1 SAI1 Transmit data1
SAI1_TXD2 SAI1 Transmit data2
Customize the embedded system based on
Defaults Function
Pin
133 CSI_DP0
135 CSI_DN0
127 CSI_DP1
129 CSI_DN1
115 CSI_DP2
117 CSI_DN2
109 CSI_DP3
111 CSI_DN3
121 CSI_CKP
123 CSI_CKN
16
Your Idea
Pin Defaults Function
48 SAI1_RXD0
47 SAI1_RXD1
46 SAI1_RXD2
45 SAI1_RXD3
44 SAI1_RXD4
43 SAI1_RXD5
42 SAI1_RXD6
41 SAI1_RXD7
37 SAI1_RXC
39 SAI1_RXFS
43 SAI1_RXD5
34 SAI1_TXD0
49 SAI5_RXFS
33 SAI1_TXD1
51 PDM_CLK
32 SAI1_TXD2
58 PDM_DATA0