version 2.0 may 2006 ? jmicron 2003. all rights reserved. page 1 copying prohibited. 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 co mmand set with lba48 addressing capability. this chip is designed by 0.18um cm os technology with 64 lqfp package . features quick reference signal bit rate 480 mbps/usb power supply 3.3v esd protection 2000 v lba 48 bit support yes gpio 24 package 64-pin lqfp ? 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 to 1.8v voltage regulator ? single power 3.3v power supply ? 64 lqfp package ? support hardware data protection ? support interface for fingerprint sensor ? support on line usb firmware update ( e.g. isp) with serial flash ? up to 24 gpio applications usb products ? enclosure system ? storage subsystem ? portable compact hdd www.datasheet.co.kr datasheet pdf - http://www..net/
version 2.0 may 2006 ? jmicron 2003. all rights reserved. page 2 copying prohibited. jmicron/JM20335 functional block diagram usb 2.0 phy usb serial interface engine (sie) register files ata/atapi controller fifo fifo usb host ide device fig. 1 functional block diagram of JM20335 applications ide device master ide usb JM20335 pc ide device slave fig. 2 hi-speed usb to pata product information name description JM20335 hi-speed usb to pata bridge design kit contact information 1 JM20335 data sheet department email 2 JM20335 design guide sales sales@jmicron.com 3 application evb tech. support fae@jmicron.com www.datasheet.co.kr datasheet pdf - http://www..net/
|
