hardware, protocol (SMBus, SMB) A simple two-wire
bus used
for communication with low-bandwidth devices on a motherboard,
especially power related chips such as a laptop's rechargeable
might include temperature sensors and lid switches.
A device can provide manufacturer information, indicate its
model/part number, save its state for a
suspend event,
report different types of errors, accept control parameters,
and return status. The SMB is generally not user configurable
or accessible.
The bus carries clock, data, and instructions and is based on
Philip's I2C serial bus protocol. Support for SMBus devices
such devices.
using SMBus would be required to pay royalties.
(1999-08-08)