
W83781D
Winbond H/W
Monitoring IC
Publication Release Date: Nov. 1997
- I -
Version 0.60
TABLE OF CONTENTS
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
INDEX 40H (BANK 0)................................................................................ 19
8.4 INTERRUPT STATUS REGISTER 1
INDEX 41H (BANK 0).......................................................................... 20
8.5 INTERRUPT STATUS REGISTER 2
INDEX 42H (BANK 0)......................................................................... 21