Rainbow-electronics NUC140 Manual do Utilizador descarregar pdf (Página 51)

NUC140 Series DATA SHEET

Publication Release Date: May 31, 2010

- 51 - Revision V1.02

5.15 I2S Controller

5.15.1 Overview

The I2S controller consists of IIS protocol to interface with external audio CODEC. Two 8 word deep

FIFO for read path and write path respectively and is capable of handling 8 ~ 32 bit word sizes. DMA

controller handles the data movement between FIFO and memory.

5.15.2 Features

y APB interface compatible

y I2S can operate as either master or slave

y Capable of handling 8, 16, and 32 bit word sizes.

y Mono and stereo audio data supported.

y I2S and MSB justified data format supported.

y Two 8 word FIFO data buffers are provided, one for transmit and one for receive.

y Generates interrupt requests when buffer levels cross a programmable boundary.

y Two DMA requests, one for transmit and one for receive.

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Rainbow-electronics NUC140 Manual do Utilizador Página 51