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參數(shù)資料
| 型號： | EP7312-EB-90 |
| 廠商： | Cirrus Logic, Inc. |
| 英文描述： | HIGH-PERFORMANCE, LOW-POWER SYSTEM ON CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE |
| 中文描述： | 高性能，低功耗的片上系統(tǒng)的SDRAM和增強(qiáng)數(shù)字音頻接口 |
| 文件頁數(shù)： | 1/64頁 |
| 文件大小： | 1710K |
| 代理商： | EP7312-EB-90 |
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Copyright Cirrus Logic, Inc. 2003
(All Rights Reserved)
Nov ’03
DS508PP5
http://www.cirrus.com
High-Performance,
Low-Power System on Chip with
SDRAM and Enhanced Digital
Audio Interface
EP7312 Data Sheet
OVERVIEW
The Cirrus Logic
EP7312 is designed for ultra-low-
power portable and line-powered applications such as
portable consumer entertainment devices, home and car
audio juke box systems, and general purpose industrial
control applications, or any device that features the
added
capability
of
digital
decompression. Thecore-logic functionality of thedevice
is built around an ARM720T processor with 8 KBytes of
four-way set-associativeunified cacheand a writebuffer.
Incorporated into the ARM720T is an enhanced memory
management unit (MMU) which allows for support of
sophisticated
operating
Windows
CE and Linux
.
BLOCK DIAGRAM
FEATURES
(cont.)
(cont.)
I
ARM
720T Processor
— ARM7TDMI CPU operating at speeds of 74and 90
MHz
— 8 KBytes of four-way set-associative cache
— MMU with 64-entry TLB
— Thumb codesupport enabled
I
Ultra low power
— 90 mW at 74 MHz typical
— 108 mW at 90 MHz typical
— <.03 mW in theStandby State
I
Advanced audio decoder/ decompression capability
— Supports bit streams with adaptivebit rates
— Allows for support of multiple audio
decompression algorithms (MP3, WMA, AAC,
Audible, etc.)
LCD
Controller
Boot
ROM
MaverickKey
TM
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
Digital
Audio
Interface
ARM720T
S
U
audio compression &
systems
like
Microsoft
MEMORY and STORAGE
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| EP7312-EB-C | HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE |
| EP7312-ER-C | HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE |
| EP7312-IR-C | GT 3C 3#16S PIN PLUG |
| EP7312-CR-90 | HIGH-PERFORMANCE, LOW-POWER SYSTEM ON CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EP7312-EB-C | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE |
| EP7312-ER-90 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM ON CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE |
| EP7312-ER-C | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE |
| EP7312-EV-90 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM ON CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE |
| EP7312-EV-C | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE |
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