JM20335

JMicron/JM20335 JM20335 Hi-Speed USB to PATA Bridge Description The JM20335 is single chip solution to bridge between Hi-Speed USB and ATA/ATAPI-based mass storage device. It provides the capability to translate USB mass storage commands to ATA/ATAPI communication protocol. The USB adheres the Mass Storage Class Bulk-Only Transport Specification, and supports dual LUN operation, which could connect to two ATA/ATAPI devices. The embedded command parser supports both ATA and ATAPI command set with LBA48 addressing capability. This chip is designed by 0.18um CMOS technology with 64 LQFP package . Features Compliance with USB 2.0 electrical specification Support USB High-Speed and Full-Speed Operation Compliance with USB Mass Storage Class, Bulk-Only Transport Specification Support ATA/ATAPI Ultra DMA Mode 0, 1, 2, 3, 4, 5 Support ATA/ATAPI Multi-Word DMA Mode 0, 1, 2 Support ATA/ATAPI PIO Mode 0, 1, 2, 3, 4 Support ATA/ATAPI PACKET command set Support ATA/ATAPI LBA48 addressing mode Support dual LUN (Logic Unit Number) with automatically master/slave enumeration Support 12MHz external crystal Support external NVRAM for Vender Specific VID/PID, Manufacture, Product String of USB Device Controller Support SCSI-2 Vender Specific Command for GPIO access Support SCSI-2 Vender Specific Command for NVRAM access Support SCSI-2 Vender Specific Command for ATA PIO command access Support ATA/ATAPI device power down control in USB Suspend mode Embedded 3.3V...