Inter-Integrated Circuit Sound (I²S, pronounced "eye-squared-ess" [citation needed]) is a serial interface protocol for transmitting two-channel, digital audio as pulse-code modulation (PCM) between integrated circuit (IC) components of an electronic device.

In this tutorial, we’ll break down the I2S protocol, examining its introduction, framing mechanisms, and intricate workings. By the end of this guide, you’ll have a comprehensive understanding of I2S, whether you’re a curious enthusiast or a tech professional.

Inter-IC Sound (I2S) Bus User's Guide Literature Number: SPRUFX4B ... Delaying I2S Frame Clock to Overcome Synchronization Problems..... 15 1-7. Timing Diagram for Left-Justified Mode with Inverse Frame-Sync Polarity and One-Bit Delay ..... 16 1-8. Timing ...

Dec 3, 2018 · A sampling of frame slot formats are shown in the following figures. This is not an exhaustive set of possibilities, but shows the various frame formatting concepts. Note that slot identifications are illustrative only, data positions are flexible …

What is I2S Protocol? The protocol which is used to transmit digital audio data from one device to another device is known as I2S or Inter-IC Sound protocol. This protocol transmits PCM (pulse-code modulated) audio data from one IC to another within an electronic device.

Apr 18, 2019 · I2S solves both of these problems with extra lines, providing a word select line (also sometimes called L/R clock) to select left or right samples, and a bit clock line to keep everything in...

I2S（Inter-IC Sound，集成电路内置音频总线）是一种同步串行通信协议，通常用于在两个数字音频设备之间传输音频数据。 ESP32 包含 2 个 I2S 外设。 通过配置这些外设，可以借助 I2S 驱动来输入和输出采样数据。 标准 模式下的 I2S 总线包含以下几条线路： MCLK：主时钟线。 该信号线可选，具体取决于从机，主要用于向 I2S 从机提供参考时钟。 BCLK：位时钟线。 用于数据线的位时钟。 WS：字（声道）选择线。 通常用于识别声道（除 PDM 模式外）。 DIN/DOUT：串行 …

Mar 4, 2020 · The stated purpose of I2S is to facilitate the development of audio electronics by means of a standardized interface for transmission of digital data among ADCs, DACs, digital filters, digital signal processors, and other types of ICs used in audio systems.

Jun 17, 2024 · By understanding the I2S protocol, its configuration options, and implementation techniques, you can effectively integrate I2S into your audio projects and ensure seamless audio communication between components.

interface is comprised of the serial audio data line (I2S_DA), two control clocks, a frame synchronization pulse (FSYNC or I2S_WC, also called sampling frequency, f S ), and the serial clock (BCK or I2S_CLK).