JMB321 Datasheet - JMicron

JMB321 Port Multiplier Chip

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. JMB321 can work as an 1 to 5-ports Port Multiplier or 5 to 1-port Port Selector using intern.

JMicron/JMB321 JMB321 Port Multiplier Chip Overview JMicron JMB321 is a single chip. It integrated six independent SATA channels and a micro-processor. With proper setting, the chip can be configured as an 1 to 5-ports Serial ATA II Port Multiplier or a 5 to 1-port Serial ATA II Port Selector. JMB321 contains 15 GPIOs which can be configured as various standard interfaces. It also has the capability to load external firmware code to extend its functionality. Compliance Compliant with Serial AT.

JMB321_JMicron.pdf