W83L785R Просмотр технического описания (PDF) - Winbond

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W83L785R

Winbond H/W Monitoring IC

Winbond 

W83L785R/W83L785G

Table of Contents-

1. GENERAL DESCRIPTION ......................................................................................................... 1

2. FEATURES ................................................................................................................................. 2

2.1 Monitoring Items............................................................................................................. 2

2.2 Actions Enabling ............................................................................................................ 2

2.3 General .......................................................................................................................... 2

2.4 Package ......................................................................................................................... 2

3. KEY SPECIFICATIONS .............................................................................................................. 2

4. PIN CONFIGURATION ............................................................................................................... 3

5. PIN DESCRIPTION..................................................................................................................... 4

6. FUNCTIONAL DESCRIPTION ................................................................................................... 6

6.1 General Description ....................................................................................................... 6

6.2 Access Interface............................................................................................................. 6

6.2.1 The first serial bus access timing is shown as follow: .......................................................6

6.3 Monitoring Time ............................................................................................................. 7

6.4 Analog Inputs ................................................................................................................. 7

6.4.1 Voltage Monitor input can not be over 2.048V:.................................................................8

6.5 Temperature Measurement Machine............................................................................. 8

6.5.1 Monitor temperature from thermistor: ...............................................................................9

6.5.2 Monitor temperature from Pentium IITM thermal diode ....................................................9

6.5.3 Over Temperature signal (OVT#) .....................................................................................9

6.5.4 Temperature Fault (Temp_fault #)..................................................................................10

6.6 FAN Speed Count and FAN Speed Control ................................................................ 11

6.6.1 Fan speed count.............................................................................................................11

6.6.2 Fan speed control...........................................................................................................12

6.7 SMI# ............................................................................................................................. 12

6.7.1 Temperature...................................................................................................................12

6.7.2 Voltage ...........................................................................................................................14

6.7.3 Fan .................................................................................................................................14

7. CONTENT OF DATA REGISTERS .......................................................................................... 15

7.1 Configuration Register  Index 40h............................................................................ 15

7.2 SMI# Status Register 1  Index 41h........................................................................... 15

7.3 Reserved  Index 42h ................................................................................................ 16

7.4 SMI# Mask Register 1  Index 43h ............................................................................ 16

7.5 Reserved  Index 44h ................................................................................................ 16

7.6 Real Time Hardware Status Register I  Index 45h................................................... 17

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