OSB4 - Champion™ Compatible SystemI/O South Bridge

Champion™ Compatible SystemI/O South Bridge

The Open South Bridge 4 (OSB4) SystemI/O Bridge is a multi-function, Plug and Play compatible PCI South Bridge. The OSB4 manages the flow of data to and from ISA, USB, ATA, SMBus, SuperI/O. Many common I/O functions are integrated into the OSB4 such as 8259-compatible Interrupt Controllers, General Purpose I/O, external I/O APIC support, and 8237-compatible DMA Controllers. The OSB4 includes advanced power management features such as: ACPI support, Clock Throttling, 8254 compatible Timers/Counters, and Inactivity/Power Down Events.