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| JMicron/JM20337 JM20337 Hi-Speed USB to SATA & PATA Combo Bridge Description 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. Features * Compliance with Gen1i, and Gen1m of Serial ATA II Electrical Specification 1.0 * Support SATA spread-spectrum transmitter * Support SATA II Asynchronous Signal Recovery (Hot Plug) feature * Compliance with USB 2.0 (Hi-Speed) electrical specification * Compliance with USB Mass Storage Class Bulk-Only Transport Specification * 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 Quick Reference Signal Bit Rate Spread Spectrum Power Supply ESD Protection Adj. Amplitude Adj. Pre-emphasis Package Applications 1.5 Gbps/SATA Mbps/USB -0.3% to 0.0 3.3V 2000 V 2 levels and 480 64-pin LQFP USB & SATA products * Enclosure System * Storage subsystem * 2 bays storage system * Backward Storage system compatible om .c 4u et he as at .d w w w Version 1.2 (c) JMicron 2003. All rights reserved. Page 1 May 2004 Copying prohibited. www..com 4 levels JMicron/JM20337 Functional Block Diagram IDE Device SATA Transport Layer ATA/ATAPI Controller ATA/ATAPI Controller SATA Physical Layer IDE Bus Controller USB Serial Interface Engine (SIE) FIFO SATA Link Layer FIFO FIFO Register Files FIFO SATA Device USB 2.0 PHY USB Host Register Files Fig. 1 Functional Block Diagram of JM20337 Applications USB to IDE + USB to SATA Combo IDE USB IDE SATA SATA JM20337 JM20337 Fig. 2 Hi-Speed USB to SATA & PATA Combo functionality Product Information Name JM20337 Design Kit 1 JM20337 Data Sheet 2 JM20337 Design Guide 3 Application EVB Description Hi-Speed USB to SATA & PATA Combo Bridge Contact Information Department Email Sales sales@jmicron.com Tech. Support fae@jmicron.com Version 1.2 (c) JMicron 2003. All rights reserved. Page 2 May 2004 Copying prohibited. |
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