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參數(shù)資料
| 型號： | CY4615 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | EZ-USB AT2⑩ USB 2.0 to ATA/ATAPI Bridge |
| 中文描述： | 的EZ - USB AT2⑩個USB 2.0到ATA / ATAPI的橋 |
| 文件頁數(shù)： | 4/26頁 |
| 文件大?。?/td> | 193K |
| 代理商： | CY4615 |
CY7C68300
Document #: 38-08011 Rev. *B
Page 4 of 26
1.0
Introduction
The EZ-USB AT2
implements a fixed function bridge between one USB port and one ATA- or ATAPI-based mass storage device
port. This bridge adheres to the
Mass Storage Class Bulk-Only Transport
Specification
and is intended for self-powered devices.
The USB port of the EZ-USB AT2 is connected to a host computer directly or via the downstream port of a USB hub. Host software
issues commands and data to the EZ-USB AT2 and receives status and data from the EZ-USB AT2 using standard USB protocol.
The ATA/ATAPI port of the EZ-USB AT2 is connected to a mass storage device. A 4-Kbyte buffer maximizes ATA/ATAPI data
transfer rates by minimizing losses due to device seek times. The ATA interface supports ATA PIO modes 0, 3, and 4, and Ultra
DMA modes 2 and 4.
The device initialization process is configurable, enabling the EZ-USB AT2 to initialize ATA/ATAPI devices without software
intervention.
1.1
Complies with USB-IF specifications for USB 2.0, the USB
Mass Storage Class
, and the USB
Mass Storage Class
Bulk-Only Transport Specification
Operates at high (480-Mbps) or full (12-Mbps) speed
Complies with T13
’
s ATA/ATAPI-6 Draft Specification
Supports 48-bit addressing for large hard drives
Supports PIO modes 0, 3, 4, and UDMA modes 2, 4
Uses one external serial EEPROM containing the USB device serial number, vendor and product identification data,
and device configuration data
ATA interface IRQ signal support
Support for ATA/ATAPI devices configured either as master or slave
“
ATA-Enable
”
input signal, which three-states all signals on the ATA interface in order to allow sharing of the bus
with another controller (e.g., an IEEE-1394 to ATA bridge chip)
Support for board-level manufacturing test via USB interface
3.3V operation for self-powered devices
56-pin SSOP and 56-pin QFN packages
.
Features
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參數(shù)描述 |
|---|---|
| CY4615A | 功能描述:開發(fā)板和工具包 - 其他處理器 Development Board COM RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| CY4615B | 功能描述:界面開發(fā)工具 Reference Design Kit COM RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| CY4616 | 制造商:Cypress Semiconductor 功能描述:HIGH SPEED USB TO ATA - Bulk |
| CY4617 | 功能描述:開發(fā)板和工具包 - 其他處理器 Development Board COM RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| CY4617-CF | 制造商:Cypress Semiconductor 功能描述:USB LS DEVELOPMENT KIT - Bulk |
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