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| JMicron/JM20339 JM20339 Hi-Speed USB to SATA Bridge Description The JM20339 is single chip solution to bridge between USB 2.0 host and SATA device. The highly integrated USB 2.0 and SATA Phys technology provides a cost-effective solution to apply USB www..com to SATA device enclosure. The USB adheres to the Mass Storage Class Bulk-Only Transport Specification. 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 USB) 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 LBA48 bit addressing mode * 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 1.5 Gbps/SATA and 480 Mbps/USB Spread Spectrum Power Supply ESD Protection Adj. Amplitude Adj. Pre-emphasis Package Applications -0.3% to 0.0 3.3V 2000 V 2 levels 4 levels 64-pin LQFP USB & SATA products * Enclosure system * Storage Subsystem * Portable compact HDD Version 1.2 (c) JMicron 2003. All rights reserved. Page 1 May 2004 Copying prohibited. JMicron/JM20339 Functional Block Diagram SATA Transport Layer USB Serial Interface Engine (SIE) SATA Physical Layer SATA Link Layer FIFO www..com Register Files FIFO SATA Device USB 2.0 PHY USB Host Register Files Fig. 1 Functional Block Diagram of JM20339 Applications USB to SATA Bridge SATA SATA JM20339 USB JM20339 Fig. 2 Hi-Speed USB to SATA device Product Information Name JM20339 Design Kit 1 JM20339 Data Sheet 2 JM20339 Design Guide 3 Application EVB Description Hi-Speed USB to SATA 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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