I 2 S Controller (I 2 S); Overview; Features - Nuvoton ISD94124BYI Technical Reference Manual

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6.17 I S Controller (I

6.17.1 Overview

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The I S controller consists of I
depth FIFO for reading path and writing path respectively and is capable of handling 8/16/24/32 bits
audio data sizes. PDMA controller handles the data movement between FIFO and memory.

6.17.2 Features

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Support Master mode and Slave mode
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Capable of handling 8, 16, 24 and 32 bits data sizes in each audio channel
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Supports monaural and stereo audio data
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Supports I 2 S protocols: Philips standard, MSB-justified, and LSB-justified data format
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Supports PCM protocols: PCM standard, MSB-justified, and LSB-justified data format
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PCM protocol supports TDM multi-channel transmission in one audio sample, and the
number of data channel can be set as 2, 4, 6, or 8
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Provides two 16-level FIFO data buffers, one for transmitting and the other for receiving
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Generates interrupt requests when buffer levels cross a programmable boundary
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Supports two PDMA requests, one for transmitting and the other for receiving
Sep 9, 2019
ISD94100 Series Technical Reference Manual
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S)
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S protocol to interface with external audio CODEC. Two 16-level
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