SMBus is used as an interconnect in several platform management standards including: ASF, DASH, IPMI.
| FactSnippet No. 1,633,641 |
10 Facts About SMBus
1.
2.
SMBus is used to access DRAM configuration information as part of serial presence detect.
| FactSnippet No. 1,633,642 |
3.
SMBus has grown into a wide variety of system enumeration use cases other than power management.
| FactSnippet No. 1,633,643 |
4.
Each message transaction on SMBus follows the format of one of the defined SMBus protocols.
| FactSnippet No. 1,633,644 |
5.
The SMBus protocols are a subset of the data transfer formats defined in the I²C specifications.
| FactSnippet No. 1,633,645 |
6.
SMBus uses I²C hardware and I²C hardware addressing, but adds second-level software for building special systems.
| FactSnippet No. 1,633,646 |
7.
SMBus has a time-out feature which resets devices if a communication takes too long.
| FactSnippet No. 1,633,647 |
8.
The SMBus protocol just assumes that if something takes too long, then it means that there is a problem on the bus and that all devices must reset in order to clear this mode.
| FactSnippet No. 1,633,648 |
9.
SMBus defines a less common "Host Notify Protocol", providing similar notifications but passing more data and building on the I²C multi-master mode.
| FactSnippet No. 1,633,649 |
10.
SMBus devices are supported by FreeBSD, OpenBSD, NetBSD, DragonFly BSD, Linux, Windows 98 and newer and Windows CE.
| FactSnippet No. 1,633,650 |