JM20337
   
Hi-Speed USB to SATA & PATA Combo Bridge

product brief

Overview
The JM20337 is single chip solution to bridge between USB 2.0, SATA and ATA/ATAPI-based mass storage device. It provides the capability to translate USB 2.0 mass storage commands to serial ATA and ATA/ATAPI communication protocol. The USB adheres to the Mass Storage Class Bulk-Only Transport Specification, and supports dual LUN operation, which could connect to two ATA/ATAPI devices or one ATA/ATAPI device associated with one SATA device. The embedded command parser supports both ATA and ATAPI command set with LBA48 bit addressing capability.
 

Feature
Compliance
• Compliance with Gen1i, and Gen1m of Serial ATA II Electrical Specification 1.0
• Compliance with USB 2.0 (Hi-Speed) electrical specification
• Compliance with USB Mass Storage Class Bulk-Only Transport Specification

 

Overall
• Support SATA spread-spectrum transmitter
• Support SATA II Asynchronous Signal Recovery (Hot Plug) feature
• Support 480Mbps High Speed (HS) and 12Mbps Full Speed USB operation
• Support ATA/ATAPI Ultra DMA Mode
• Support ATA/ATAPI PACKET command feature set
• Support ATA/ATAPI LBA48 bit addressing mode
• Support dual LUN (Logic Unit Number) with automatically master/slave enumeration
• Support 12MHz external crystal
• Single-power 3.3V power supply
• 0.18um CMOS technology and 64-pin LQFP ASSP package

 
Software
• Support operation system :
        • Microsoft Windows 98
        • Microsoft Windows ME, 2000, XP, 2003, Media Center, and later
        • Mac OS 9.22 and above

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