AVR - melyiket?

Borbas, Imre Imre_Borbas at or.mxim.com
Mon Apr 28 23:47:28 CEST 2003


> -----Original Message-----
> From: VFX [mailto:info at vfx.hu]
> Hi-hi, az coool, cask az a baj, hogy ebben egy ATmega128 figyel
> procikent, igy MP3 SWbol igen bajos lesz. De keszul a megoldas: MSCnel
> 4xxx HUF penzert van ATMEL MP3 Player 89Cxxxx (nemtom fejbol) 
> az pl. 1db
> 1.5V ceruzaelemrol szuperal :)) Az nem dob sokat a fogyasztason.
> 
> 
> UDV. VFX.

Ja, ez tenyleg franko, csak gyozze az ember felprogramozni a sok featurat
benne. Mp3, USB, IDE, MMC, Smartmedia, stb, stb.
Viszont cserebe 'C51 alapu :(

AT83C51SND1C
AT89C51SND1C
Single-Chip Microcontroller with MP3 Decoder and Man-Machine Interface
  

Features
* MPEG I/II-Layer 3 Hardwired Decoder
- Stand-alone MP3 Decoder
- 48, 44.1, 32, 24, 22.05, 16 kHz Sampling Frequency
- Separated Digital Volume Control on Left and Right Channels (Software
Control
Using 31 Steps)
- Bass, Medium, and Treble Control (31 Steps)
- Bass Boost Sound Effect
- Ancillary Data Extraction
- "CRC Error" and "MPEG Frame Synchronization" Indicators
* Programmable Audio Output for Interfacing With Common Audio DAC
- PCM Format Compatible
- I2S Format Compatible
* 8-bit MCU C51 Core Based (FMAX= 20 MHz)
* 2304 Bytes of Internal RAM
* 64K Bytes of Code Memory
- Flash: AT89C51SND1C, ROM: AT83C51SND1C
* 4K Bytes of Boot Flash Memory (AT89C51SND1C)
- ISP: Download from USB or UART to Any External Memory Cards
* USB Rev 1.1 Controller
- "Full Speed" Data Transmission
* Built-in PLL
- MP3 Audio Clocks
- USBClock
* MultiMedia Card Interface Compatibility
* Atmel DataFlash SPI Interface Compatibility
* IDE/ATAPI Interface
* 2 Channels 10-bit ADC, 8 kHz (8-True Bit)
- Battery Voltage Monitoring
- Voice Recording Controlled by Software
* Up to 44 bits of General-purpose I/Os:
- 4-bit Interrupt Keyboard Port for a 4 x n Matrix
- SmartMedia Software Interface
* Standard Two 16-bit Timers/Counters
* Hardware Watchdog Timer
* Standard Full Duplex UART with Baud Rate Generator
* Two Wire Interface (TWI) Master and Slave Modes Controller
* SPI Master and Slave Modes Controller
* Power Management
- Power-on Reset
- Software Programmable MCU Clock
- Idle Mode, Power-down Mode
* Operating Conditions:
- 3V, +/-10%, 25 mA Typical Operating at 25C
- Temperature Range: -40C to +85C
* Packages
- TQFP80, PLCC84 (Development Board)
- Dice

Imi


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