Transcription of JM20337 Hi-Speed USB to SATA & PATA Combo …
1 JMicron/ JM20337 . JM20337 . Hi-Speed USB to sata & PATA Combo bridge Description The JM20337 is single chip solution to bridge between USB , sata and ATA/ATAPI-based mass storage device. It provides the capability to translate USB 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.
2 Features Quick Reference Compliance with Gen1i, and Gen1m of Signal Bit Rate Gbps/ sata and 480. Serial ATA II Electrical Specification Mbps/USB. Support sata spread-spectrum transmitter Spread Spectrum to Support sata II Asynchronous Signal Recovery (Hot Plug) feature Power Supply Compliance with USB ( Hi-Speed ). electrical specification ESD Protection 2000 V. Compliance with USB Mass Storage Class Bulk-Only Transport Specification Adj. Amplitude 2 levels Support 480 Mbps High speed (HS) and 12 Mbps Full speed USB operation Adj. Pre-emphasis 4 levels Support ATA/ATAPI Ultra DMA Mode Support ATA/ATAPI PACKET command Package 64-pin LQFP.
3 Feature set Support ATA/ATAPI LBA48 bit addressing Applications USB & sata products mode Enclosure System Support dual LUN (Logic Unit Number). Storage subsystem with automatically master/slave enumeration 2 bays storage system Support 12 MHz external crystal. Single-power power supply Backward compatible CMOS technology and 64-pin LQFP Storage system ASSP package Version May 2004. JMicron 2003. All rights reserved. Page 1 Copying prohibited. JMicron/ JM20337 . Functional Block Diagram IDE. Device sata Transport Layer Serial Interface Engine FIFO. FIFO. sata Link Layer ATA/ATAPI Controller ATA/ATAPI Controller sata Physical Layer IDE Bus Controller USB PHY.
4 (SIE). USB. sata USB. Device Host FIFO. FIFO. Register Files Register Files Fig. 1 Functional Block Diagram of JM20337 . Applications USB to IDE +. USB to sata Combo IDE. USB. IDE JM20337 . sata . sata . JM20337 . Fig. 2 Hi-Speed USB to sata & PATA Combo functionality Product Information Name Description JM20337 Hi-Speed USB to sata & PATA Combo bridge Design Kit Contact Information 1 JM20337 Data Sheet Department Email 2 JM20337 Design Guide Sales 3 Application EVB Tech. Support Version May 2004. JMicron 2003. All rights reserved. Page 2 Copying prohibited.