Table of Contents
Advertisement
3.2.1.6 Audio interface signals
μQ7-A75-J module supports AC'97 or I2S audio format, thanks to native support offered by the processor to this audio codec standard.
Here following the signals related to AC'97/I2S Audio interface:
HDA_SYNC: AC'97 Serial Bus Synchronization or I2S Word Select Signal. Output from the module to the Carrier board, electrical level +3.3V_S.
HDA_RST#: AC'97/I2S Codec Reset. Active Low signal Output from the module to the Carrier board, electrical level +3.3V_S.
HDA_BCLK: AC'97 24MHz Serial Bit Clock or I2S Serial Data Clock signal. Output from the module to the Carrier board, electrical level +3.3V_S.
HDA_SDO: AC'97/I2S Serial Data Out signal. Output from the module to the Carrier board, electrical level +3.3V_S.
HDA_SDI: AC'97/I2S Serial Data In signal. Input to the module from the Carrier board, electrical level +3.3V_S.
All these signals have to be connected, on the Carrier Board, to an AC'97 or I2S Audio Codec. Please refer to the chosen Codec's Reference Design Guide for
correct implementation of audio section on the carrier board.
μQ7-A75-J
μQ7-A75-J User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B. - Reviewed by P.Z. - Copyright © 2016 SECO S.r.l.
27
Advertisement
Table of Contents
