Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. The southbridge
is one of the two chips in the core logic chipset on a personal computer
(PC) motherboard, the other being the northbridge. The southbridge
typically implements the "slower" capabilities of the motherboard in a
northbridge/southbridge chipset computer architecture. In Intel chipset
systems the southbridge is named Input/Output Controller Hub (ICH). The
southbridge can usually be distinguished from the northbridge by not
being directly connected to the CPU. Rather, the northbridge ties the
southbridge to the CPU. Through the use of controller integrated channel
circuitry, the northbridge can directly link signals from the I/O units
to the CPU for data control and access.
