S3C44B0 Chinese data manual introduces IIS (Internal Sound Integrated Circuit) bus interface of S3C44B0X, which can be used to implement the interface function of external 8/16-bit stereo audio digital signal decoding circuit, so as to realize the miniature radio and other portable applications. It supports IIS bus data format and MSB-justified data format. IIS bus interface provides DMA transmission mode for FIFO operation, instead of interrupt mode, which can simultaneously transmit or receive data.
This Chinese data sheet provides an overview of the S3C44B0's IIS (Internal Sound Interface) functionality, including supported data formats, channel configurations, and sample rates. It describes the register map for controlling the IIS, FIFO buffers, and DMA operation.
The document details the clock generation options, prescaler settings, and how to configure the IIS for normal or DMA modes. It also lists the bit‑width options per channel (8‑ or 16‑bit) and the supported sample frequencies (16, 32, 48 fs, etc.). This manual is written in Chinese.
| Supported data formats | IIS, MSB‑justified |
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The IIS supports both standard IIS format and MSB‑justified format.