version 1.2 june 2008 ? jmicron 2008. all rights reserved. page 1 copying prohibited. jmicron/JMB352U JMB352U high-speed usb & sata ii combo to dual sata ii port multiplier(1 to 2) bridge description the JMB352U is a bridge controller, which translates the communication protocol between sata ii 3.0g. this chip integrated 60mips 8051, and provide esata ii 3.0g to dual sata ii 3.0g port multiplier applications in a single chip. in this chip, the sata controller could be configured as host or device. the 3-port sata ii 3.0g controllers further supports the esata to dual sata communication. integrated these two technologies, the user could perform JMB352U to the following applications. ? esata to dual sata bridge port multiplier application ? one-button system backup application for above applicat ions. (with sata vender software application) features quick reference signal bit rate 3.0 gbps power supply 3.3v and 1.2v gpio support up to 9 esd protection 2000 v package 64-pin lqfp raid level support jbod, port multiplier sata port 3 ? compliance with serial ata international organization: serial ata revision 2.6 ? compliance with gen1i, gen1m, gen2i and gen2m of serial ata international organization: serial ata revision 2.6 ? support sata 1.5g/3.0g speed negotiation ? support sata ii asynchronous signal recovery (hot plug) feature ? support sata host/device controller configuration ? support usb hid interrupt transfer ? support ata/atapi packet command feature set ? support sata 30mhz or 40mhz external crystal usb port 1 www.datasheet.co.kr datasheet pdf - http://www..net/
version 1.2 june 2008 ? jmicron 2008. all rights reserved. page 2 copying prohibited. jmicron/JMB352U ? integrated 60mips 8051 microprocessor with 64k-byte mask rom ? support one-button system backup operation ? support one-button disk copy ? support external nvram for customer vid/pid, manufacture and product string. applications ? mass storage devices ? optical storage ? storage system ? port multiplier functional block diagram mcu usb device controller hi-speed usb phy 3-port sata ii controller 3-port sata ii phy dma controller data ram program rom gpio i/f voltage regulator gpio sata_a sata_c usb sata_b fig. 1 functional block diagram of JMB352U applications usb sata c sata b gpio pc host sata device sata device nvram led JMB352U usb sata keypad sata a fw download only fig. 2 esata to dual sata port multiplier application www.datasheet.co.kr datasheet pdf - http://www..net/
version 1.2 june 2008 ? jmicron 2008. all rights reserved. page 3 copying prohibited. jmicron/JMB352U usb sata sata gpio pc host sata device sata device nvram led JMB352U usb keypad sata fw download only sata device fig. 3 hi-speed usb to sata with 3 lun bridge application usb sata c sata a gpio pc host sata device nvram led JMB352U usb sata keypad fw download only sata b sata fig. 4 dual esata(port b & port c) & hi-speed usb to sata application product information name description jmb352 serial ata bridge chip design kit contact information 1 jmb352 data sheet department email 2 jmb352 design guide sales sales@jmicron.com 3 application evb tech. support fae@jmicron.com www.datasheet.co.kr datasheet pdf - http://www..net/
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