EP7312-CB-C datasheet(1/54 Pages) CIRRUS

Part #	EP7312-CB-C

Description	HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE

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Manufacturer	CIRRUS [Cirrus Logic]

Direct Link	http://www.cirrus.com

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©Copyright Cirrus Logic, Inc. 2003

Nov ’03

DS506PP1

http://www.cirrus.com

High-Performance,

Low-Power System on Chip with

SDRAM and Enhanced Digital

Audio Interface

EP7311 Data Sheet

OVERVIEW

BLOCK DIAGRAM

FEATURES

(cont.)

I ARM720T Processor

—ARM7TDMI CPU

— 8 KB of four-way set-associative cache

— MMU with 64-entry TLB

— Thumb code support enabled

I Ultra low power

—90 mW at 74 MHz typical

—30 mW at 18 MHz typical

—10 mW in the Idle State

—<1 mW in the Standby State

I 48 KB of on-chip SRAM

I MaverickKey™ IDs

— 32-bit unique ID can be used for SDMI compliance

—128-bit random ID

I Dynamically programmable clock speeds of

18, 36, 49, and 74 MHz

LCD

Controller

Boot

ROM

MaverickKeyTM

ARM7TDMI CPU Core

MMU

8 KB

Cache

Write

Buffer

Internal Data Bus

EPB Bus

Memory Controller

SDRAM I/F

SRAM I/F

On-chip SRAM

48 KB

ICE-JTAG

Clocks &

Timers

Keypad&

Touch

Screen I/F

Interrupts,

PWM & GPIO

Bus

Bridge

(2) UARTs

w/ IrDA

Power

Management

Serial

Interface

Multimedia

Codec Port

ARM720T

MEMORY AND STORAGE

The Maverick™ EP7311 is designed for ultra-low-power

applications such as PDAs, smart cellular phones, and

industrial hand held information appliances. The core-

logic functionality of the device is built around an

ARM720T processor with 8 KB of four-way set-

associative unified cache and a write buffer. Incorporated

into the ARM720T is an enhanced memory management

unit (MMU) which allows for support of sophisticated

operating systems like Linux®.

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EP7312-CB-C Datasheet(PDF) 1 Page - Cirrus Logic

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