ep9312 Cirrus Logic, Inc., ep9312 Datasheet - Page 2

• Manufacturer Part Number: ep9312
• Description: Universal Platform System-on-chip Processor
• Manufacturer: Cirrus Logic, Inc.

EP9312
Universal Platform SOC Processor
2
OVERVIEW
The EP9312 is an ARM920T-based system-on-a-chip
design with a large peripheral set targeted to a variety of
applications:
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The ARM920T microprocessor core with separate 16-
kbyte, 64-way set-associative instruction and data
caches is augmented by the MaverickCrunch™ co-
processor
calculations.
MaverickKey
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
Revision
Thin client computers for business and home
Internet radio
Internet access devices
Industrial computers
Specialized terminals
Point of sale terminals
Test and measurement equipment
1
2
3
4
5
6
7
December 2003
™
Febuary 2005
enabling
August 2001
March 2001
June 2001
May 2003
July 2004
unique hardware programmed IDs are a
Date
high-speed
Initial Release.
Upgrade to revision B silicon.
Upgrade to revision C silicon.
Upgrade to revision D silicon.
Update timing data.
Update AC data.
Add ADC data.
Update with most-current characterization data.
©
Copyright 2005 Cirrus Logic (All Rights Reserved)
floating
Table A. Change History
point
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 (EMAC) is included along with external
interfaces to SPI, I
peripherals, 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 EP9312 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).
Changes
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S audio, Raster/LCD, IDE storage
DS515PP7