F81866A Datasheet, PDF (3/210 Pages) Feature Integration Technology Inc. – 6 UARTs Super IO With 128 Bytes FIFO and Power

Table of Content
F81866A
1. General Description ...................................................................................................... 11
2. Features ....................................................................................................................... 11
3. Block Diagram .............................................................................................................. 15
4. Pin Configuration .......................................................................................................... 16
5. Pin Description ............................................................................................................. 17
5.1
Power Pin................................................................................................................ 17
5.2
Clock ....................................................................................................................... 18
5.3
LPC Interface .......................................................................................................... 18
5.4
FDC, & GPIO .......................................................................................................... 18
5.5
Parallel Port (LPT Port), & GPIO............................................................................. 20
5.6
Hardware Monitor, I2C, & GPIO.............................................................................. 21
5.7
KBC & I2C Function ................................................................................................ 22
5.8
ACPI, ERP, SIR & GPIO ......................................................................................... 23
5.9
UART, GPIO............................................................................................................ 25
6. Function Description ..................................................................................................... 28
6.1
Power on Strapping Option ..................................................................................... 28
6.2
FDC......................................................................................................................... 28
6.3
Parallel Port ............................................................................................................ 29
6.4
Hardware Monitor.................................................................................................... 32
6.4.1
General Description.................................................................................................... 32
6.4.1.1 Voltage .................................................................................................................... 32
6.4.1.2 Temperature Sensor................................................................................................ 33
(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