Table of Contents
(Continued)
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10
Revision1.1
P
7.2.7
7.2.8
7.2.9
Hard-Disk LED Indicator Control ...............................................................................125
SMBus Voltage Translation .......................................................................................125
SMBus Isolation .........................................................................................................126
8.0
Health Management (HM)
8.1
OVERVIEW .............................................................................................................................127
8.2
FUNCTIONAL DESCRIPTION ................................................................................................127
8.2.1
Health Management Module Access .........................................................................127
8.2.2
SensorPath Bus .........................................................................................................127
8.2.3
Temperature Monitoring ............................................................................................129
8.2.4
Voltage Monitoring .....................................................................................................130
8.2.5
Device Enumeration and HM Channel Association ...................................................130
8.2.6
SensorPath Device Setting and Scanning .................................................................132
8.2.7
Fan Speed Monitoring ...............................................................................................133
8.2.8
Fan Speed Control ....................................................................................................134
8.2.9
Event Notification .......................................................................................................138
8.2.10
Enhanced Thermal Control (ETC) .............................................................................139
8.2.11
General Configuration ...............................................................................................139
8.3
HM SMBUS ACCESS ..............................................................................................................140
8.3.1
Write Transaction ......................................................................................................140
8.3.2
Read Transaction ......................................................................................................140
8.4
HM LPC ACCESS REGISTERS ..............................................................................................141
8.4.1
HM Address Register (HMADDR) .............................................................................142
8.4.2
HM Data Register (HMDATA) ...................................................................................142
8.4.3
HM Status and Command Register (HMSTS) ...........................................................142
8.4.4
HM Interrupt Status Register 1 (HMINT_STS1) ........................................................143
8.4.5
HM Interrupt Status Register 2 (HMINT_STS2) ........................................................144
8.4.6
HM Interrupt Enable Register 1 (HMINT_EN1) .........................................................145
8.4.7
HM Interrupt Enable Register 2 (HMINT_EN2) .........................................................146
8.4.8
HM Sensor Status Register 1 (HMSENS_STS1) ......................................................147
8.4.9
HM Sensor Status Register 2 (HMSENS_STS2) ......................................................148
8.4.10
HM Interrupt Status Register 3 (HMINT_STS3) ........................................................149
8.4.11
HM Interrupt Enable Register 3(HMINT_EN3) ..........................................................149
8.4.12
HM Sensor Status Register 3 (HMSENS_STS3) ......................................................150
8.4.13
HM SMI/SCI Enable Register 1 (HMS_EN1) .............................................................150
8.4.14
HM SMI/SCI Enable Register 2 (HMS_EN2) .............................................................151
8.4.15
HM SMI/SCI Enable Register 3(HMS_EN3) ..............................................................152
8.4.16
Events to SMI/SCI Routing Register (SMI/SCI_ROUT) ............................................152
8.5
HEALTH MANAGEMENT REGISTERS ..................................................................................153
9.0
Legacy Functional Blocks
9.1
FLOPPY DISK CONTROLLER (FDC) .....................................................................................192
9.1.1
General Description ...................................................................................................192
9.1.2
FDC Bitmap Summary ...............................................................................................193
9.2
PARALLEL PORT ....................................................................................................................194
9.2.1
General Description ...................................................................................................194
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