W83627HF Datasheet, PDF (7/185 Pages) Winbond – WINBOND I/O

W83627HF/F
PRELIMINARY
7.2 INPUT BUFFER ....................................................................................................................................................77
7.3 STATUS REGISTER ............................................................................................................................................77
7.4 COMMANDS.........................................................................................................................................................78
7.5 HARDWARE GATEA20/KEYBOARD RESET CONTROL LOGIC.............................................................80
7.5.1 KB Control Register (Logic Device 5, CR-F0) .............................................................................................80
7.5.2 Port 92 Control Register (Default Value = 0x24)........................................................................................80
8. GENERAL PURPOSE I/O....................................................................................................81
9. PLUG AND PLAY CONFIGURATION ............................................................................84
9.1 COMPATIBLE PNP ..............................................................................................................................................84
9.1.1 Extended Function Registers..........................................................................................................................84
9.1.2 Extended Functions Enable Registers (EFERs)............................................................................................85
9.1.3 Extended Function Index Registers (EFIRs), Extended Function Data Registers(EFDRs) ......................85
9.2 CONFIGURATION SEQUENCE........................................................................................................................85
9.2.1 Enter the extended function mode..................................................................................................................85
9.2.2 Configurate the configuration registers........................................................................................................85
9.2.3 Exit the extended function mode ....................................................................................................................86
9.2.4 Software programming example....................................................................................................................86
10. ACPI REGISTERS FEATURES .......................................................................................87
11. HARDWARE MONITOR...................................................................................................88
11.1 GENERAL DESCRIPTION ...............................................................................................................................88
11.2 ACCESS INTERFACE .......................................................................................................................................88
11.2.1 LPC interface.................................................................................................................................................88
11.2.2 I2C interface..................................................................................................................................................90
11.3 ANALOG INPUTS..............................................................................................................................................94
11.3.1 Monitor over 4.096V voltage:......................................................................................................................94
11.3.2 Monitor negative voltage: ............................................................................................................................95
11.3.3 Temperature Measurement Machine...........................................................................................................96
11.4 FAN SPEED COUNT AND FAN SPEED CONTROL...................................................................................97
11.4.1 Fan speed count ............................................................................................................................................97
11.4.2 Fan speed control .........................................................................................................................................99
11.5 SMI# INTERRUPT MODE ................................................................................................................................99
11.5.1 Voltage SMI# mode :....................................................................................................................................99
11.5.2 Fan SMI# mode : ..........................................................................................................................................99
Publication Release Date:Sep 1998
-IV -
Revision 0.50