JMicron Technology 
Part Number : JM20335
Overview :
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
Categories :
Portability :
Type : Soft

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