DOC4106 datasheet(23/47 Pages) ATMEL

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AT8xC51SND1C

4106F–8051–10/02

Universal Serial Bus

Interface

The AT8xC51SND1C implement a full-speed USB Interface. It can be used for the fol-

lowing purposes:

•

Download of MP3 encoded audio files by supporting the USB mass storage class.

•

In-System Programming by supporting the USB firmware upgrade class.

MultiMedia Card

Interface

The AT8xC51SND1C implement a MultiMedia Card (MMC) interface compliant to the

V2.2 specification in MultiMedia Card mode. The MMC allows storage of MP3 encoded

audio files in removable Flash memory cards that can be easily plugged to, or removed

from the application. It can also be used for In-System Programming.

IDE/ATAPI Interface

The AT8xC51SND1C provide an IDE/ATAPI interface allowing connection of devices

such as CD-ROM reader, CompactFlash

™ cards, Hard Disk Drive, etc. It consists of a

16-bit bi-directional bus part of the low-level ANSI ATA/ATAPI specification. It is pro-

vided for mass storage interfaces but could be used for In-System Programming using

CD-ROM.

Serial I/O Interface

The AT8xC51SND1C implement a serial port with its own baud rate generator providing

one single synchronous communication mode and three full-duplex Universal Asynchro-

nous Receiver Transmitter (UART) communication modes. It is provided for the

following purposes:

•

In-System Programming.

•

Remote control of the AT8xC51SND1C by a host.

Serial Peripheral

Interface

The AT8xC51SND1C implement a Serial Peripheral Interface (SPI) supporting master

and slave modes. It is provided for the following purposes:

•

Interfacing DataFlash memory and DataFlash cards for MP3 encoded audio files

storage

•

Remote control of the AT8xC51SND1C by a host

•

In-System Programming

TWI Controller

The AT8xC51SND1C implements a TWI controller supporting the four standard master

and slave modes with multimaster capability. It is provided for the following purposes:

•

Connection of slave devices like LCD controller, audio DAC…

•

Remote control of the AT8xC51SND1C by a host

•

In-System Programming

A/D Controller

The AT8xC51SND1C implements a 2-channel 10-bit (8 true bits) analog-to-digital con-

verter (ADC). It is provided for the following purposes:

•

Battery monitoring

•

Voice recording

•

Corded remote control

Keyboard Interface

The AT8xC51SND1C implement a keyboard interface allowing connection of 4 x n

matrix keyboard. It is based on 4 inputs with programmable interrupt capability on both

high or low level. These inputs are available as an alternate function of P1.3:0 and allow

exit from idle and power-down modes.

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