User`s guide

AT85C51SND3Bx Firmware User’s Guide 1-1
7691A–MP3–08/07
Section 1
Introduction
The AT85C51SND3Bx is a low power single-chip highly-integrated digital audio
decoder/encoder for applications such as audio players, recorders, cell phones, toys…
The AT85C51SND3Bx MP3 Player firmware is part of the AT85DVK-07 development kit
or the AT85RFD-07 reference design dedicat ed to the AT85C51SN D3Bx
microcontroller.
This document is the User’s Guide of the AT85C51SND3Bx MP3 Player firmware.
The topics covered are:
 the functional features and options that the firmware brings
 how the firmware source code files are organized
 the firmware architecture
 how to configure the firmware
 the MMI layer
The AT85C51SND3Bx firmware described in this document has been developed to run
on the AT85DVK-07 as well as the AT85RFD-07.
For more information on the AT85DVK-07 development board, refer to the documents
“AT85DVK-07 Hardware User’s Guide” and “AT85DVK-07 Demonstration Firmware
User’s Manual”, available on the Atmel web site.
For more information on the AT85RFD-07 development board, refer to the documents
“AT85RFD-07 Hardware User’s Guide” and “AT85RFD-07 Demonstration Firmware
User’s Manual”, available on the Atmel web site.