F71872
Table of Contents
1 GENERAL DESCRIPTION.........................................................................................................................................................4
2 FEATURES ....................................................................................................................................................................................4
3 KEY SPECIFICATIONS ..............................................................................................................................................................5
4 PIN CONFIGURATION...............................................................................................................................................................6
5 PIN DESCRIPTIONS ...................................................................................................................................................................6
5.1 POWER PIN.........................................................................................................................................................................7
5.2 LPC INTERFACE .................................................................................................................................................................7
5.3 FDC...................................................................................................................................................................................8
5.4 UART PORT AND SIR.........................................................................................................................................................8
5.5 KBC I/F .............................................................................................................................................................................9
5.6 IEEE 1284 PARALLEL PORT .............................................................................................................................................10
5.7 H/W MONITOR.................................................................................................................................................................11
5.8 ACPI FUNCTION PINS .......................................................................................................................................................12
5.9 VID CONTROLLING PINS...................................................................................................................................................13
6 FUNCTION DESCRIPTION .....................................................................................................................................................14
6.1 POWER ON STRAPPING OPTIONS.......................................................................................................................................14
6.2 ACPI................................................................................................................................................................................14
6.3 PCI RESET AND PWROK SIGNALS ..................................................................................................................................16
6.4 HARDWARE MONITOR ......................................................................................................................................................16
6.5 FDC.................................................................................................................................................................................23
6.6 UART ..............................................................................................................................................................................24
6.7 PARALLEL PORT ...............................................................................................................................................................24
6.8 KEYBOARD CONTROLLER ................................................................................................................................................24
6.9 DYNAMIC VOLTAGE CHANGE APPLICATION .....................................................................................................................25
7 REGISTER DESCRIPTIONS....................................................................................................................................................27
7.1 GLOBAL CONTROL REGISTERS .........................................................................................................................................27
7.1.1
7.1.2
7.1.3
7.1.4
7.1.5
Software Reset Register Index 02h.................................................................................................................................... 27
Logic Device Number Register Index 07h......................................................................................................................... 27
Chip ID Register Index 20h............................................................................................................................................... 28
Chip ID Register Index 21h............................................................................................................................................... 28
Vendor ID Register Index 23h ........................................................................................................................................... 28
1
July, 2007
V0.28P
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