F81866A
Table of Content
1.
2.
3.
4.
5.
General Description...................................................................................................... 11
Features ....................................................................................................................... 11
Block Diagram ..............................................................................................................15
Pin Configuration ..........................................................................................................16
Pin Description .............................................................................................................17
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
Power Pin................................................................................................................17
Clock.......................................................................................................................18
LPC Interface..........................................................................................................18
FDC, & GPIO ..........................................................................................................18
Parallel Port (LPT Port), & GPIO.............................................................................20
Hardware Monitor, I2C, & GPIO..............................................................................21
KBC & I2C Function................................................................................................22
ACPI, ERP, SIR & GPIO .........................................................................................23
UART, GPIO............................................................................................................25
6.
Function Description.....................................................................................................28
6.1
6.2
6.3
6.4
Power on Strapping Option.....................................................................................28
FDC.........................................................................................................................28
Parallel Port ............................................................................................................29
Hardware Monitor....................................................................................................32
General Description....................................................................................................32
Voltage ....................................................................................................................32
Temperature Sensor................................................................................................33
6.4.1
6.4.1.1
6.4.1.2
(1) Monitor Temperature from “thermistor”...............................................................................34
(2) Monitor Temperature from “thermal diode”.........................................................................34
Over Temperature Signal (OVT#)..............................................................................................34
Temperature PME#....................................................................................................................34
6.4.1.3
Fan..........................................................................................................................35
Fan speed count........................................................................................................................35
Fan speed control......................................................................................................................35
(1) DAC Fan Control................................................................................................................36
(2) PWM duty Fan Control.......................................................................................................36
Fan speed control mechanism ..................................................................................................37
(1) Manual mode......................................................................................................................38
(2) Auto mode ..........................................................................................................................38
Jan, 2012
V0.12P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
