JM20338 Overview
The JM20338 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 and SATA protocols to ATA/ATAPI mands. The USB adheres to the Mass Storage Class Bulk-Only Transport Specification, and supports dual LUN operation.
JM20338 Key Features
- pliance 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
- pliance with USB 2.0 (Hi-Speed USB) electrical specification
- pliance with USB Mass Storage Class Bulk-Only Transport Specification
- Support 480Mbps High Speed (HS) and 12Mbps Full Speed USB operation
- Support ATA/ATAPI-7
- Support ATA/ATAPI Ultra DMA Mode
- Support ATA/ATAPI PACKET mand feature set
- Support ATA/ATAPI LBA48 addressing mode