EP9315
Enhanced Universal Platform SOC Processor
OVERVIEW
The EP9315 is an ARM920T-based system-on-a-chip
design with a large peripheral set targeted to a variety of
applications:
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Thin Client Computers for Business and Home
Internet Radio
Internet Access Devices
Industrial Computers
Specialized Terminals
Point-of-sale Terminals
Test and Measurement Equipment
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 (EMAC) is included along with external
interfaces to SPI, I
2
S audio, Raster/LCD, IDE storage
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 EP9315 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).
The ARM920T microprocessor core with separate
16-kbyte, 64-way set-associative instruction and data
caches is augmented by the MaverickCrunch™ co-
processor,
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
Table A. Change History
Revision
PP1
PP2
PP3
PP4
Date
January 2004
July 2004
Febuary 2005
March 2005
Initial Release.
Update AC data.
Add ADC data.
Changes
Update electrical characteristics based upon more complete characterization data.
Minor correction to block diagram on page 1. DD7 changed to pull down.
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Copyright 2005 Cirrus Logic (All Rights Reserved)
DS638PP4
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