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EP7312-IV-C

更新时间： 2024-11-14 22:33:35

品牌	Logo	应用领域
凌云 - CIRRUS		动态存储器
页数	文件大小	规格书
54页	1540K
描述
HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE

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EP7312-IV-C 数据手册

EP7311 Data Sheet

High-Performance,

FEATURES

I ARM720T Processor

Low-Power System on Chip with

SDRAM and Enhanced Digital

Audio Interface

— ARM7TDMI CPU

— 8 KB of four-way set-associative cache

— MMU with 64-entry TLB

— Thumb code support enabled

I Ultra low power

OVERVIEW

— 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

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

™

I MaverickKey IDs

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

— 128-bit random ID

operating systems like Linux .

I Dynamically programmable clock speeds of

18, 36, 49, and 74 MHz

(cont.)

BLOCK DIAGRAM

EPB Bus

Multimedia

Codec Port

Clocks &

Timers

ARM720T

ICE-JTAG

Power

Management

Serial

Interrupts,

Interface

PWM & GPIO

ARM7TDMI CPU Core

8 KB

Cache

Write

Buffer

Keypad&

Touch

Screen I/F

(2) UARTs

w/ IrDA

Boot

ROM

Bus

Bridge

MMU

Internal Data Bus

Memory Controller

SRAM I/F SDRAM I/F

On-chip SRAM

48 KB

LCD

Controller

MaverickKey

MEMORY AND STORAGE

Nov ’03

DS506PP1

http://www.cirrus.com

12 3 4 5 6 7...54

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