PMBus Application Profile for DC-DC Power Modules – Revision 1.0
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Table of Contents
1. Introduction ............................................................................................................................................. 5
1.1. Application Profile Scope ........................................................................................................... 5
1.1.1. What Is Included ........................................................................................................ 5
1.1.2. What Is Not Included ................................................................................................. 5
1.1.3. What Is Not Included in Revision 1.0 ........................................................................ 5
1.2. Application Profile Changes Since Last Revision ...................................................................... 6
1.3. Where to Send Feedback and Comments ................................................................................ 6
2. Related Documents ................................................................................................................................ 6
2.1. Scope ......................................................................................................................................... 6
2.2. Applicable Documents ............................................................................................................... 6
2.3. Reference Documents ............................................................................................................... 6
3. Compliance ............................................................................................................................................. 7
3.1. Principles for compliance ........................................................................................................... 7
3.1.1. Commands ................................................................................................................ 7
3.1.2. Basic Functionality .................................................................................................... 7
3.2. Bus Speed ................................................................................................................................. 7
3.3. SMBALERT# ............................................................................................................................. 7
3.4. Control Signal (CONTROL) ....................................................................................................... 7
4. Commands ............................................................................................................................................. 8
4.1. Command Handling Recommendations .................................................................................... 8
4.1.1. Preserving Bit Settings .............................................................................................. 8
4.1.2. Data Read Back and Validation ................................................................................ 8
4.1.3. Alert Response Address (ARA) ................................................................................. 8
4.1.4. Address Resolution Protocol (ARP) .......................................................................... 8
4.1.5. Group Command Protocol ........................................................................................ 8
4.1.6. ZONE_READ and ZONE_WRITE ............................................................................. 8
4.2. Table of Commands .................................................................................................................. 8
4.3. Command Profile Descriptions ................................................................................................ 10
4.3.1. PAGE ...................................................................................................................... 10
4.3.2. OPERATION ........................................................................................................... 10
4.3.3. ON_OFF_CONFIG .................................................................................................. 11
4.3.4. CLEAR_FAULTS ..................................................................................................... 11
4.3.5. STORE_DEFAULT_ALL ......................................................................................... 11
4.3.6. RESTORE_DEFAULT_ALL .................................................................................... 11
4.3.7. STORE_USER_ALL ................................................................................................ 11
4.3.8. RESTORE_USER_ALL .......................................................................................... 11
4.3.9. CAPABILITY ............................................................................................................ 11
4.3.10. VOUT_MODE .......................................................................................................... 12
4.3.11. VOUT_COMMAND ................................................................................................. 12
4.3.12. VOUT_MARGIN_HIGH ........................................................................................... 12
4.3.13. VOUT_MARGIN_LOW ............................................................................................ 12
4.3.14. VOUT_OV_FAULT_LIMIT ...................................................................................... 12
4.3.15. VOUT_UV_FAULT_LIMIT ....................................................................................... 12
4.3.16. IOUT_OC_FAULT_LIMIT ........................................................................................ 12
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