Analog Hardware Features
• Three channels of 24-bit audio ADC
• Two 24-bit audio DACs
• Stereo earphone driver for 30
load
• Internal microphone amplifiers
• Stereo FM radio receiver with RDS
• 10-bit ADC, 3-5 external inputs
• Operation from single power supply,
four programmable internal regulators

Digital Hardware Features
• 100 MIPS VS_DSP4 processor core
• 128 KiB program RAM (32 KiWord)
• 128 KiB data RAM (232 KiWord)
• Protected 8 Mi-bit FLASH (Optional)
• USB 2.0 Full Speed Host / Device
• I2S and SPDIF digital audio interfaces
• NAND FLASH interface with EEC
• SD Card interface
• 2 SPI bus interfaces
• 10BaseT Ethernet controller
• UART interface
• All digital pins are user configurable for
general purpose IO
• Flexible clock selection, default operation
from 12.288MHz
• Internal PLL clock multiplier for digital
logic
• RTC with battery backed memory
• Reed-Solomon error correction
• HW debug support with VSIDE via JTAG

Firmware and VSOS Features
• Decoders: MP3, WMA, Ogg Vorbis, AAC,
ALAC, FLAC, AIFF, WAV PCM, DSD
• Encoders: MP3, Ogg Vorbis,WAV PCM
• File I/O for SD cards and USB drives
• FM tuner and RDS decoder
• USB host and device libraries
• Extensive audio DSP library
• VSOS UART Shell Environment
• Flexible boot options
• Pre-emptive multitasking
• Easy-to-write software interface with VSIDE
• Graphical display with resistive touch panel