FLEX-IMX8M-Mini HARDWARE MANUAL
– VER 1.00 – JAN 31 2020
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32
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5.4. Audio Interface
The FLEX-IMX8M-Mini provides multiple I
2
S (or I
2
S) interfaces that support fullduplex serial interfaces
with frame synchronization such as I2S, AC97, TDM, and codec/DSP interfaces.
The I
2
S Interface supports the following features:
•
Transmitter with independent bit clock and frame sync supporting 1 data line
•
Receiver with independent bit clock and frame sync supporting 1 data line
•
Each data line can support a maximum Frame size of 32 words
•
Word size of between 8-bits and 32-bits
•
Word size configured separately for first word and remaining words in frame
•
Asynchronous 128 × 32-bit FIFO for each transmit and receive data line
•
Supports graceful restart after FIFO error
•
Supports automatic restart after FIFO error without software intervention
•
Supports packing of 8-bit and 16-bit data into each 32-bit FIFO word
For additional details, please refer to th
e “Synchronous Audio Interface (SAI)” chapter of the “i.MX8M
Mini Applications Processor
Reference Manual”.
