ARM9, System-on-Chip Processor with Graphics

The EP9307 is a low-cost, integrated system-on-chip processor for applications that require a rich user interface. The EP9307 features an advanced 200 MHz 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 EP9307's user interface capabilities include a 2-D graphics acceletrator that improves performance by handling block copy, block fill, line draw and bit blit. Resolutions of up to 1024 x 768 (XGA) are supported. Touchscreen, keypad and high quality sound (SPI, I²S and AC '97) complete the EP9307's strong user interface features. 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 EP9307 to offer unique speed and performance when encoding digital audio and video formats, processing Ethernet data 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. External interfaces to SPI, I²S audio, AC '97, Raster/LCD, keypad and touchscreen are included. A three-port USB 2.0 full-speed host (OHCI), running at 12 Mbps, and three UARTs are included as well. The ARM920T core operates from a 1.8 V supply, and the input/output (I/O) operates at 3.3V. Designers of digital jukeboxes, telematic control systems, thin clients, point-of-sale terminals, industrial controls, biometric security systems and GPS devices will benefit from the EP9307's integrated architecture and advanced features. In fact, with its broad range of peripheral interfaces, the EP9307 is suited to even more applications. By enabling or disabling the EP9307'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
    • Hardware interlocks for 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
    • Graphics accelerator
    • Three-port USB 2.0 full-speed host (OHCI)
    • Three UARTs (16550 type)
    • IrDA interface, slow and fast mode
    • LCD interface with dedicated SDRAM channel
    • Touchscreen interface
    • SPI port
    • AC '97 interface
    • I²S interface, up to six channels
    • 8x8 keypad
  • External memory options
    • 32-bit SDRAM interface, up to four banks
    • 32-, 16- and 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)
    • 14 enhanced GPIOs including interrupt capability
    • 18 additional optional GPIOs multiplexed on peripherals
  • Package: 272-pin TFBGA; option for lead-free assembly and industrial temperature ratings

Parametric Specifications

Not Recommended for New Designs

Technical Documents

EP93xx User's Guide

DS785UM1 : 12391 Kb

EDB9307A-Z Product Bulletin

0176-0607-PB : 696 Kb

EP9307 Product Bulletin

0125-0607-PB : 852 Kb

Errata: EP9307 Rev E2 Silicon

ER667E2B : 291 Kb

Errata: EP9307 Rev E1

ER667E1REV2 : 119 Kb

Errata: EP9307 Rev E0

ER667E0 : 226 Kb


Comprehensive Solutions