Universal Platform, System-on-Chip Processor

The EP9315 is a highly integrated system-on-chip processor that paves the way for next-generation consumer and industrial electronic products. The EP9315 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 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. With the EP9315's built-in IDE interface, the processor can connect directly with multiple hardware devides such as hard drives, CD drives and DVD drives. This significantly reduces BOM costs and board size. The EP9315's user interface capabilities include a 2-D graphics accelerator 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. 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, I²S audio, Raster/LCD, IDE storage peripherals, keypad and touchscreen. A three-port USB 2.0 full-speed host (OHCI), running at 12 Mbps, and three UARTs are included as well. Designers of digital media servers, jukeboxes, telematic control systems, thin clients, set-top boxes, point-of-sale terminals, industrial controls, biometric security systems and GPS devices will benefit from the EP9315's integrated architecture and advanced features. In fact, with its broad range of peripheral interfaces, the EP9315 is suited to even more applications. By enabling or disabling the EP9315'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.

Features

  • 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 allow in-line coding
  • MaverickKey™ IDs for digital rights management or design IP security (special order feature)
    • 32-bit unique ID and 128-bit random ID
  • Integrated peripheral interfaces
    • PCMCIA interface
    • Graphics accelerator
    • EIDE, up to two devices
    • 1/10/100 Mbps Ethernet MAC
    • 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 scanner
  • External memory options
    • 32-bit SDRAM interface, up to four bank
    • 32/16/8-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 control all clock domains
    • Watchdog timer
    • Two general-purpose 32-bit timers
    • 40-bit debug timer
  • General-purpose I/Os (GPIOs)
    • 16 enhanced GPIOs including interrupt capability
    • 49 additional optional GPIOs on peripherals
  • Package: 352-pin PBGA; option for lead-free assembly and industrial temperature ratings

Parametric Specifications

Processor Speed (MHz) 200
Cache Data/Code 16 K/16 K
Ethernet MAC true
PCMCIA Device true
IDE/IF 2
USB Hosts 3
Display I/F true
Graphics Engine true
Math Crunch true
Touch/ADC 8 wire
Package 352 PBGA

Technical Documents

EP93xx User's Guide

Sep 19, 2007, DS785UM1 : 12391 Kb

EDB9315A-Z Product Bulletin

Jun 8, 2007, 0179-0607-PB : 703 Kb

EP9315 Product Bulletin

Jun 8, 2007, 0120-0607-PB : 862 Kb

Errata: EP9315 Rev E2 Silicon

May 4, 2007, ER638E2B : 292 Kb

EDB9315A Technical Reference Manual

Aug 30, 2006, DS638DB3 : 3049 Kb

Errata: EP9315 Rev E1

Jan 20, 2006, ER638E1REV2 : 121 Kb

EDB9315A Product Bulletin

Dec 9, 2005, 0164-0605-PB-LP : 418 Kb

Errata: EP9315 Rev E0

Apr 26, 2005, ER638E0 : 280 Kb

EDB9315 Product Bulletin

Feb 1, 2004, 0119-0204-PB : 655 Kb

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Comprehensive Solutions