MSC SM2S-IMX8MINI 27 / 87
User Manual
4 Module Connector Signal Description
In the following tables signals are marked with the power rail associated
with the pin, and for input and I/O pins, with the input voltage tolerance.
The pin power rail and the pin input voltage tolerance may be different.
Output pins are also classified as push pull (PP) or open drain (OD).
The column “PU/PD” describes pull-up resistors (PU) or pull-down
resistors (PD) implemented on the module.
4.1 I²S
The module provides two I²S Links for connecting I²S codecs on the carrier board. Driver support for I²S is only available for Linux.
Some features:
• Programmable data interface modes such as I2S, LSB or MSB-justified
• Programmable word length (16, 20, 24 or 28bits)
• AC97 and TDM support
• Time Slot Mask Registers for reduced ARM platform overhead (for both Transmit and Receive)
• 128-word Transmit FIFO and 128-word Receive FIFO
Table 6: I²S Signal Description
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