W83781D Datasheet, PDF (3/53 Pages) Winbond – MONITORING IC

TABLE OF CONTENTS
W83781D
Winbond H/W
Monitoring IC
1. GENERAL DESCRIPTION.......................................................................................................... 1
2. FEATURES.................................................................................................................................... 1
2.1 MONITORING ITEMS......................................................................................................................................... 1
2.2 ACTIONS ENABLING ......................................................................................................................................... 2
2.3 GENERAL ............................................................................................................................................................ 2
2.4 PACKAGE............................................................................................................................................................ 2
3. KEY SPECIFICATIONS .............................................................................................................. 2
4. BLOCK DIAGRAM ...................................................................................................................... 3
5. PIN CONFIGURATION ............................................................................................................... 4
6. PIN DESCRIPTION ...................................................................................................................... 5
7. FUNCTIONAL DESCRIPTION ................................................................................................... 7
7.1 GENERAL DESCRIPTION .................................................................................................................................. 7
7.1.1 The first serial bus access timing are shown as follow: .................................................................................. 9
7.1.2 The serial bus timing of the temperature 2 and 3 is shown as follow:........................................................... 10
7.2 ANALOG INPUTS.............................................................................................................................................. 12
7.3 FAN INPUTS AND FAN CONTROL ................................................................................................................. 13
7.4 TEMPERATURE MEASUREMENT MACHINE................................................................................................ 14
8. CONTROL AND STATUS REGISTERS................................................................................... 16
8.1 ADDRESS REGISTER (PORT X5H) .................................................................................................................. 16
8.2 DATA REGISTER (PORT X6H)......................................................................................................................... 19
8.3 CONFIGURATION REGISTER ¾- INDEX 40H (BANK 0)................................................................................ 19
8.4 INTERRUPT STATUS REGISTER 1¾ INDEX 41H (BANK 0).......................................................................... 20
8.5 INTERRUPT STATUS REGISTER 2 ¾ INDEX 42H (BANK 0)......................................................................... 21
Publication Release Date: Nov. 1997
-I-
Version 0.60