JMicron JMB321
JMB321 is a highly integrated single chip. It integrates six high-speed Serial I/O’s, three SATA upper layers, a microprocessor, SRAM, PROM, a highly efficient data bus and other control logic into the chip. JMicron/JMB321 JMB321 Port Multiplier Chip Overview JMicron JMB321 is a single chip.| Part No. | JMB321 |
|---|---|
| Datasheet | JMB321 Download |
| Manufacturer |  JMicron |
| Description | Port Multiplier Chip |
| Buy | Stock & Price |
DESCRIPTION
JMB321 is a highly integrated single chip. JMB321 can work as an 1 to 5-ports Port Multiplier or 5 to 1-port Port Selector using internal embedded Copyright © 2009 JMicron Inc. All rights reserved. Product Brief Page 1 2009/01/11 Datasheet pdf - JMicron/JMB321 firmware without extra external flash needed. But it also can use external flash interface and with proper firmware programming to extend its capability. Block Diagram Figure Function View of JMB321 Data Bus SATA HDD SATA 3Gb/Sec PHY SATA Upper Layer Clock Gen Reset Circuit SATA HDD SATA 3Gb/Sec PHY SATA Upper Layer GPIO Circuit SATA HDD SATA 3Gb/Sec PHY SATA Upper Layer FIS Processor SATA Upper Layer SATA 3Gb/Sec PHY HOST BUS ADAPTER SATA HDD SATA 3Gb/Sec PHY SATA Upper Layer uP PROM SATA HDD SATA 3Gb/Sec PHY SATA Upper Layer SRAM SPI Port Multiplier Register Bus Supporting Document 1 2 3 4 Product Brief Data Sheet Hardware Design Guide Application Schematic Contact Information Department Sales Tech. Support Email sales@jmicron.com fae@jmicron.com Copyright © 2009 JMicron Inc.