It controls the part of the external data bus connected to the expansion slots.
if by BUS you mean Frontside Bus, you dont need to configure anything, it is automatically configured when the computer is made
An expansion bus will not work in sync with the CPU. In addition, it will not work with the system clock.
expansion bus
System bus, memory bus, front side bus (FSB), host bus, local bus, or external bus.
A bus that works asynchronously with the CPU is -the expansion bus
In computers, the bus is the subsystem that transfers data between internal parts of the computer, or from internal parts of the computer to external parts, or between two computers. External bus can be parallel (ATA (and all of its derivations), IEEE-488, SCSI) or serial (USB, FireWire, etc.).
Similar terms for "external data bus" include "external bus," "data bus," and "I/O bus," which all refer to pathways used for transferring data between components outside the central processing unit. Other related terms might include "interface bus" and "system bus," highlighting their role in facilitating communication between different hardware units.
computer bus types&function
No. An expansion bus always connects to South Bridge. http://www.wisegeek.com/what-is-southbridge.htm
explain bus incidence matrix.
Bus? Please explain.