Rainbow Electronics NUC140 - Manual (Page 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.