SMBus Specifications
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Current Release
of the SMBus Specifications
Technical questions about specifications should be sent to
techquestions@smiforum.org.
Past Releases
of the SMBus Specifications
- System
Management Bus (SMBus) Specification, version 3.1.
Posted: 19-Mar-2018.
- System
Management Bus (SMBus) Specification, version 3.0.
Posted: 16-Jan-2015.
- System
Management Bus (SMBus) Specification, version 2.0.
Posted: 03-Aug-2000.
- SMBus
Control Method Interface Specification, version 1.0. This
specification defines a System Management Bus (SMBus) interface
for Advanced Configuration and Power Interface (ACPI). This
interface, referred to as the SMBus Control Method Interface
(CMI), allows the capabilities of an SMBus segment to be easily
utilized regardless of hardware origin or implementation. Posted:
10-Dec-1999
- SMBus
Device Driver External Architecture Specification, version 1.0.
This document defines the exposed external interfaces of the
SMBus device driver. The SMBus device driver is intended to
operate on both Windows 98 and Windows 2000. The device driver
conforms to the Windows Driver Model (WDM) as set forth by Microsoft.
The device driver uses ACPI SMBus control methods to communicate
with SMBus hardware as defined in the SMBus Control Method Interface
Specification. Posted: 10-Dec-1999.
- System
Management Bus (SMBus) Specification, version 1.1.
- System
Management Bus Specification, version 1.0: Defines a 2-wire
interface through which the battery can communicate with the
charger, a system host or other power-related components. View
a short description of SMBus commands.
- System
Management Bus BIOS Specification (SMBus BIOS): Defines
a standard BIOS interface to the System Management Bus. It is
designed to abstract the hardware implementation of the SMBus
and expose it in a standardized way to higher layers of software.
This specification was posted on 15-February-1995.
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