Feature Integration Technology Inc.
Fintek
F75375S/F75375SG
Table of Contents
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5
GENERAL DESCRIPTION............................................................................................................................................1
FEATURE ......................................................................................................................................................................1
PIN CONFIGURATION..................................................................................................................................................2
PIN DESCRIPTION .......................................................................................................................................................2
FUNCTIONAL DESCRIPTION......................................................................................................................................4
5.1 ANALOG INPUT ..........................................................................................................................................................4
5.2 ACCESS INTERFACE...................................................................................................................................................5
5.3 TEMPERATURE MEASUREMENT MACHINE....................................................................................................................6
5.3.1 Monitor Temperature from thermistor ..................................................................................................................6
5.3.2 Monitor Temperature from thermo diode .............................................................................................................7
5.3.3 Over Temperature Signal (OVT#)........................................................................................................................7
5.4 FAN ..........................................................................................................................................................................7
5.4.1 Fan speed count ..................................................................................................................................................7
5.4.2 Fan speed control ................................................................................................................................................8
5.4.3 Fan speed control mechanism.............................................................................................................................9
5.4.4 FAN_Fault#........................................................................................................................................................11
5.5 SMI#......................................................................................................................................................................12
5.5.1 Temperature.......................................................................................................................................................12
5.5.2 Voltage...............................................................................................................................................................13
5.5.3 Fan.....................................................................................................................................................................13
5.6 VOLT_FAULT# (VOLTAGE FAULT SIGNAL) ...............................................................................................................13
6
REGISTER DESCRIPTION.........................................................................................................................................14
6.1 CONFIGURATION REGISTER INDEX 00H ................................................................................................................14
6.2 CONFIGURATION REGISTER INDEX 01H ................................................................................................................14
6.3 CONFIGURATION REGISTER INDEX 02H ................................................................................................................15
6.4 CONFIGURATION REGISTER INDEX 03H ................................................................................................................16
6.5 SERIAL BUS ADDRESS REGISTER INDEX 04H........................................................................................................17
6.6 VALUE RAM INDEX 10H- 2FH ..............................................................................................................................17
6.7 IRQ/SMI# ENABLE REGISTER 1 INDEX 30H .......................................................................................................18
6.8 INTERRUPT STATUS REGISTER 1 INDEX 31H .........................................................................................................19
July 2007 V0.26P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
