Nano100(A)
5.18 I2S
5.18.1 Overview
The audio controller consists of I2S protocol to interface with external audio CODEC. Two 8 word
deep FIFO for receiving path and transmitting path respectively and is capable of handling 8-, 16-,
24-, 32-bit word sizes. PDMA controller handles the data movement between FIFO and memory.
5.18.2 Features
Support Master mode and Slave mode
Capable of handling 8-, 16-, 24- or 32-bit word sizes
Supports monaural and stereo audio data
Supports I2S and MSB justified data format
Provides two 8-level FIFO data buffers, one for transmitting and the other for receiving
Generates interrupt requests when buffer levels cross a programmable boundary
Support PDMA transfer
Mar 31, 2015
Page 73 of 95
Revision V1.00
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