Internet Audio Jukebox Processor with Audio Compression & Security

The EP9312 is an ARM920T-based system-on-chip designed for audiojukebox applications where processor performance, signal processing capability, communications bandwidth, storage capabilities, and user interface are properly balanced to provide up to four streams of compressed audio data (MP3, WMA, etc.) through a home network.

The ARM920T micro-processor core with separate 16 Kbyte, 64-way, set-associative instruction and data caches is augmented by the audio compression co-processor enabling faster than real-time compression of audio CDs. The proprietary security features not only exceeds SDMI security requirements for music content, but can also protect proprietary firmware, transactions, and other digital content.

A high-performance 1/10/100 Mbps Ethernet Media Access Controller (EMAC) is included along with external interfaces to SPI and I²S audio, LCD, IDE storage peripherals, keypad, and touchscreen. A three-port USB host and three UARTs are included as well.

The EP9312 operates at a maximum clock rate of 200 MHz. The ARM core operates from a 2.5V supply, while the I/O operates at 3.3V with power between 350 mW and 1000 mW, dependent on speed.

• 200 MHz ARM920T processor with WinCE-enabled MMU
  • 16 Kbyte instruction and 16 Kbyte data cache
• MaverickCrunch audio compression
  • Optimized for digital music compression and decompression algorithms with hardware interlocks
• MaverickLock security features
  • Incorporates boot ROM, laser fuses, and gate-level IP
  • Supports multiple security vendors on same device
  • Exceeds SDMI requirements
• Integrated peripheral interfaces
  • 32-bit SDRAM, 32/16-bit SRAM/FLASH/ROM, EPROM
  • 1/10/100 Mbps Ethernet MAC and serial audio interface
  • EIDE, 3-port USB host, IrDA, 16550 UART (3) interfaces
  • LCD with touchscreen and 8x8 keypad scanner
• Internal peripherals
  • Eight direct memory access (DMA) channels with CRC
  • Dual PLL controls all clock domains
  • Real-time clock, interrupt controller and boot ROM
  • Watchdog, debug, and 4 general purpose, 16-bit timers
• Package: 352-pin PBGA