The BX8800 is designed as a System On a Chip: system controller and decoder controller for multi-format digital audio player with access of various storage such as USB , SD /MMC card, NAND flash, Nor flash and etc. The independent dual 32-bit RISC processors provide optimum performance and code density for the combination of control code and signal processing required for digital audio decoding, file system management and system control.

The BX8800 integrates programmable and approved ARM7TDMI ™ as a system controller, MCS Logic proprietary 32-bit RISC-DSP processor for advanced multi-format digital audio (MP3/WMA/Ogg) decoding, low power dedicated hard-wired CDROM decoder, On-chip SRAM and ROM, versatile audio interfaces of USB 2.0 host/device, SD/MMC card, NAND flash and large number of GPIO ( General Purpose Input Output) ports. In addition, SRS(WOW) are available as system solutions. By utilizing advanced 0.18 micron technology, the BX8800 is the perfect solution for digital audio products with low power requirements; high performance and powerful processing.

Package Type
 128 TQFP
Memory
 4-Kbyte Unified Cache SRAM
 2-Kbyte On-chip Data SRAM
 32-Kbyte On-chip general purpose Data SRAM
 Maximum 256-Mbit SDRAM interface with 16-bit data width
 Maximum 32-Mbit parallel NVRAM interface with 8/16-bit data width
 Maximum 32-Mbit serial SPI flash interface
GPIO ( General Purpose Input Output)
 37 GPIOs
 Extra external memory interface function
Interrupt
 25 programmable interrupt sources
Serial I/O Interface
 Two 3-wire ultra high speed synchronous serial interfaces (SCI)
 Two 2-wire high speed Asynchronous serial interface with IrDA functionality(UART)
I2C
 Master mode operation only
 Baud rate generation for serial clock
I2S
 4 wire audio data interface
Basic Timer & Watchdog Timer
 Three timers with PWM functionality
 One Watchdog timer
General Purpose DMA
 One general purpose DMA control block
A/D Converter
 One 10-bit resolution 6-channel high speed ADC
SPDIF Transceiver
 IEC-958 (SPDIF) compliant digital audio output
 IEC-958 (SPDIF) compliant digital audio input
NAND Flash controller
 Dedicated NAND type flash memory controller
 Two independent chip selectors
USB 2.0 Full-speed Device controller
 5 end point, 576 byte FIFO
 Compliant to USB 2.0 specification
 Support USB 2.0 FS(Full Speed, 12Mbps)
 Support Interrupt, Bulk transfer
USB 2.0 Full-speed Host controller
 USB Rev 2.0 compatible
 Open HCI Rev 1.0 compatible
 Support for both low speed and full speed USB devices

Decoder Core and Functions
 MPEG 1/2/2.5 layer2 and 3 decoding
 Window Media Audio (WMA V9 compatible) decoding
 Audio decoding of Window Media Video (WMV)
 Acvanced System Format (ASF) decoding
 Ogg Vorbis ( by Q10) decoding
 High quality MLPCM voice recording
 Supports SRS (WOW) sound effect
 Supports software mute/pause/resume/volume
 Digital volume control
 7-band sound / graphic equalizer for MP3, WMA, Ogg and Red book audio CD
 Optional sampling rate conversion to 44.1Khz for off-chip general audio DAC
 Channel mixing or separating for two different audio sources
 Supports time display ( normal/FF/FB)
 MEBB(MCS logic Enhanced Bass Boost) sound algorithm
 CD-TEXT decoding in Lead-in area
 High quality ESP sound with high compression rate

Format Decoding
 ID3 tag V 1.1 and V 2.3 extraction
 FAT8, FAT12, FAT16, FAT32 file type
 ISO9660 CDROM Mode1/Mode2 format
 Joliet decoding both single session and multi session disc
 Joliet Level 3
 UDF V1.02/V1.5/V2.01
 UDF in packet writing format
 Sorting directories and files in name order
 playing list file