expansion bus


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Related to expansion bus: expansion slot, PCI bus

expansion bus

[ik′span·shən ‚bəs]
(computer science)
The wiring and protocols that connect a computer's motherboard with the peripheral devices.

expansion bus

An input/output pathway from the CPU to peripheral devices, typically comprising a series of slots on the motherboard into which expansion cards are inserted. PCI is a common expansion bus in a PC and other hardware platforms. See expansion card and PC data buses. See also bus extender.
References in periodicals archive ?
0 channels, an AC97 audio controller, two SATA and one UDMA EIDE storage interfaces, Compact Flash socket, four serial ports with two supporting RS-422/485 capability, eight general-purpose I/O (GPIO) pins, one parallel port, and a PCI-104 expansion bus.
PCI Express is a new point-to-point serial bus that will replace the existing PCI expansion bus and provide a new, smaller form factor for add in cards for the desktop and mobile PCs.
The ribbon cable-based expansion bus, which handles inter-module communication, operates at 11 MBaud, is permitted to be 6.
Based on a high-performance ARM940T core, the CX821xx includes a dedicated, high-speed memory bus, USB port, expansion bus, various GPIO's and timers and two 10/100 Ethernet MACs.
For added flexibility and product customization, the chip can also be configured with a PCI expansion bus to support Ethernet redundancy, high-density serial connectivity as well as wireless networks.