High-Performance, Networked, ARM9, System-on-Chip Processor

The EP9302 is a high-performance system-on-chip design that includes a 200 MHz ARM9 processor and is ideal for a range of industrial and consumer electronic applications. The EP9302 features an advanced ARM920T processor design with a memory management unit (MMU) that supports Linux®, Windows CE® and many other embedded operating systems. The ARM920T's 32-bit microcontroller architecture, with a five-stage pipeline, delivers impressive performance at very low power. The 16 KB instruction cache and 16 KB data cache provide zero-cycle latency to the current program and data, or they can be locked to guarantee no-latency access to critical instructions and data. For applications with instruction-memory size restrictions, the ARM920T's compressed Thumb instruction set provides space efficiency and maximum external instruction memory usage. The ARM920T core is augmented by the MaverickCrunch™ coprocessor. This coprocessor greatly accelerates the ARM920T's single- and double-precision integer and floating-point processing capabilities, enabling the EP9302 to perform high-speed mathematical calculations when encoding digital audio and video formats, processing industrial-control algorithms and performing other math-intensive computing and data-processing functions. MaverickKey™ unique hardware programmed IDs provide a solution to concerns over secure Web content and commerce. MaverickKey™ provides OEMs with a method of assigning specific hardware IDs such as those used for SDMI (Secure Digital Music Initiative) or any other digital rights management mechanisms. A high-performance 1/10/100 Mbps Ethernet media access controller (MAC) is included, along with external interfaces to SPI, AC '97 and I²S audio. A two-port USB 2.0 Full Speed host (OHCI), running at 12 Mbps, two UARTs and a 12-bit analog-to-digital (A/D) converter are included as well. The ARM920T core operates from a 1.8 V supply, and the input/output (I/O) operates at 3.3 V with power usage typically less than half a watt. Designers of industrial controls, internet radios, digital media servers, audio jukeboxes, thin clients, set-top boxes, point-of-sale terminals, biometric security systems and GPS devices will benefit from the EP9302's integrated architecture and advanced features. By enabling or disabling the EP9302's peripheral interfaces, designers can also reduce development costs and accelerate time to market by creating a single platform that can be modified to deliver differentiated end-products. Cirrus Logic's embedded processor products are complemented by a range of complete operating systems. Both Microsoft® Windows CE.NET® and Linux® solutions are available with total driver support.


  • 200 MHz ARM920T processor
    • 16 KB data cache and 16 KB instruction cache
    • MMU enabling Linux® and Windows CE®
    • 100 MHz system bus
  • MaverickCrunch™ math engine
    • Floating point, integer and signal-processing instructions
    • Optimization for digital music compression algorithms
    • Hardware interlocks allow in-line coding
  • MaverickKey™ IDs for digital rights management or design IP security (special order feature)
    • 32-bit unique ID
    • 128-bit random ID
  • Integrated peripheral interfaces
    • Five-input A/D converter with 12-bit resolution
    • 1/10/100 Mbps Ethernet MAC
    • Two-port USB 2.0 Full Speed host (OHCI)
    • Two UARTs (16550 type), including soft modem support
    • IrDA interface, slow mode
    • SPI port
  • Interfaces for AC '97 and I²S
  • External memory options
    • 16-bit SDRAM interface, up to two banks
    • 16/8-bit SRAM/Flash/ROM I/F
    • Serial EEPROM interface
  • Internal peripherals
    • Real-time clock with software trim
    • 12 DMA channels for data transfer that maximizes system performance
    • Boot ROM
    • Dual PLLs to control all clock domains
    • Watchdog timer
    • Two general-purpose 16-bit timers
    • General-purpose 32-bit timer
    • 40-bit debug timer
  • General-purpose I/Os (GPIOs)
    • 16 enhanced GPIOs including interrupt capability
    • Eight additional optional GPIOs multiplexed on peripherals
  • Lead-free package

Parametric Specifications

Processor Speed (MHz) 200
Cache Data/Code 16 K/16 K
Ethernet MAC true
PCMCIA Device false
USB Hosts 2
Display I/F false
Graphics Engine false
Math Crunch true
Touch/ADC 5 ADC
Package 208 LQFP

Technical Documents

EP93xx User's Guide

Sep 19, 2007, DS785UM1 : 12391 Kb

EDB9302A-Z Product Bulletin

Jun 8, 2007, 0175-0607-PB : 587 Kb

EP9302 Product Bulletin

Jun 8, 2007, 0135-0607-PB : 784 Kb

Errata: EP9302 Rev E2 Silicon

May 4, 2007, ER653E2B : 285 Kb

EDB9302A Technical Reference Manual

Oct 12, 2006, DS653DB1 : 1856 Kb

Errata: EP9302 Rev E1

Jan 20, 2006, ER653E1REV2 : 117 Kb

Errata: EP9302 Rev E0

May 6, 2005, ER653E0 : 212 Kb

Design Resources

AN273 EP93xx Silicon Rev E Design Guidelines

Mar 1, 2007, AN273REV4 : 57 Kb

AN265 EP93xx RTC Oscillator Circuit

Dec 19, 2005, AN265REV2 : 187 Kb

AN269 Using the EP93xx's Raster Engine

Sep 8, 2005, AN269REV1 : 482 Kb

AN258 EP93xx Power-up and Reset Lockup Workaround

Sep 28, 2004, AN258REV2 : 112 Kb

ARM9-Based Processor Family Comparison Chart

May 17, 2004, CH004F2 : 22 Kb


Comprehensive Solutions