ep7309 Cirrus Logic, Inc., ep7309 Datasheet

ep7309

Manufacturer Part Number

ep7309

Description

Ep7309 Data Sheet

Manufacturer

Cirrus Logic, Inc.

Datasheet

1.EP7309.pdf (51 pages)

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ep7309-CB

Manufacturer:

Cirrus Logic Inc

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ep7309-CR

Manufacturer:

CIRRUSLOGIC

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ep7309-CV

Manufacturer:

Cirrus Logic Inc

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Part Number:

ep7309-CV

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CIRRUS

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Part Number:

ep7309-CVZ

Manufacturer:

Cirrus Logic Inc

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Current page: 1 of 51
Download datasheet (2Mb)

http://www.cirrus.com

FEATURES

■ ARM720T Processor

■ Ultra low power

■ Advanced audio decoder/decompression capability

BLOCK DIAGRAM

— ARM7TDMI CPU

— 8 KB of four-way set-associative cache

— MMU with 64-entry TLB

— Thumb code support enabled

— 90 mW at 74 MHz typical

— 30 mW at 18 MHz typical

— 10 mW in the Idle State

— <1 mW in the Standby State

— Supports bit streams with adaptive bit rates

— Allows for support of multiple audio decompression

algorithms (MP3, WMA, AAC, ADPCM, Audible,

etc.)

MaverickKey

(2) UARTs

Interface

w/ IrDA

Digital

Audio

Serial

Internal Data Bus

Management

Power

ROM

Boot

FLASH I/F

SRAM &

MEMORY AND STORAGE

(cont.)

ARM7TDMI CPU Core

Cache

8 KB

ARM720T

ICE-JTAG

MMU

OVERVIEW

The Maverick™ EP7309 is designed for ultra-low-power

applications such as digital music players, internet appliances,

smart cellular phones or any hand-held device that features the

added capability of digital audio decompression. 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 Microsoft

Windows

Buffer

Write

On-chip SRAM

Low-power, System-on-chip

48 KB

Digital Audio Interface

CE and Linux

EPB Bus

High-performance,

with Enhanced

Bridge

Bus

EP7309 Data Sheet

PWM & GPIO

Interrupts,

Screen I/F

Controller

Clocks &

Keypad&

Timers

Touch

LCD

DS507F1

AUG ‘05

(cont.)

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