Cirrus Logic EP9307-IRZ

The EP9307 is an ARM920T-based system-on-a-chip (SOC) design with a large peripheral set targeted to a variety of applications: Thin client computers for business and home Internet radio Internet access devices Industrial computers Specialized terminals Point of sale terminals Test and measurement equipment

The ARM920T microprocessor core with separate 16-kbyte, 64-way set-associative instruction and data caches is augmented by the MaverickCrunch™ coprocessor, enabling high-speed floating point calculations.

MaverickKey™ unique hardware programmed IDs are a solution to the growing concern over secure web content and commerce. With Internet security playing an important role in the delivery of digital media such as books or music, traditional software methods are quickly becoming unreliable. The MaverickKey unique IDs provide OEMs with a method of utilizing specific hardware IDs such as those assigned for SDMI (Secure Digital Music Initiative) or any other authentication mechanism.

A high-performance 1/10/100 Mbps Ethernet media access controller (MAC) is included along with external interfaces to SPI, I²S audio, Raster/LCD, keypad and touchscreen. A three-port USB 2.0 Full-speed Host (OHCI) (12 Mbits per second) and three UARTs are included as well.

The EP9307 is a high-performance, low-power, RISC-based, single-chip computer built around an ARM920T microprocessor core with a maximum operating clock rate of 200 MHz (184 MHz for industrial conditions). The ARM core operates from a 1.8 V supply, while the I/O operates at 3.3 V with power usage between 100 mW and 750 mW (dependent on speed).

• 200-MHz ARM920T Processor
• 16-kbyte Instruction Cache
• 16-kbyte Data Cache
• Linux, Microsoft Windows CE-enabled MMU
• 100-MHz System Bus
• MaverickCrunch Math Engine
• Floating Point, Integer and Signal Processing Instructions
• Optimized for digital music compression and decompression algorithms
• Hardware interlocks allow in-line coding
• MaverickKey IDs 32-bit unique ID can be used for DRM-compliant, 128-bit random ID
• Integrated Peripheral Interfaces
• 32-bit SDRAM Interface (up to 4 banks)
• 32/16-bit SRAM/FLASH/ROM
• Serial EEPROM Interface
• 1/10/100 Mbps Ethernet MAC
• Three UARTs
• Three-port USB 2.0 Full-speed Host (OHCI) (12 Mbits per second)
• IrDA Interface
• LCD and Raster Interface with Graphics Accelerator
• Touchscreen Interface with ADC
• 8x8 Keypad Scanner
• One Serial Peripheral Interface (SPI) Port
• 6-channel or 2-channel Serial Audio Interface (I²S)
• 2-channel, Low-cost Serial Audio Interface (AC'97)
• 12 Direct Memory Access (DMA) Channe
• Real-time Clock with Software Trim
• Dual PLL controls all clock domains
• Watchdog Timer
• Two General-purpose 16-bit Timers
• One General-purpose 32-bit Timer
• One 40-bit Debug Timer
• Interrupt Controller
• Boot ROM

• Thin client computers for business and home
• Internet radio Internet access devices
• Industrial computers
• Specialized terminals
• Point of sale terminals
• Test and measurement equipment