W83791G Datasheet, PDF (25/99 Pages) Winbond – Winbond H/W Monitoring IC

W83791D/G
1
8
1
8
1
8
1
A
Rd Data 1 A
Rd Data 2
A
Rd Data 3 A
…
0
Status
0
Event Sensor Type 0
Event Type 0
8
1
Rd Data 4 A
Event Offset 0
8
1
Rd Data 5 A
Event Source 0
Type
8
1
Rd Data 6
A
Event Severity 0
8
1
Rd Data 7
A…
Sensor Device 0
8
18
18
1
Rd Data 8 A Rd Data 9 A Rd Data 10
A…
Sensor
0 Entity
Number
0 Entity Instance 0
8
1
1
…
PEC
A
P
From zero to five bytes of Event Data [data dependent] 1
6.6 Analog Inputs
The maximum input voltage of the analog pin is 4.096V because the 8-bit ADC has a 16mv LSB.
Actually, the application of the PC monitoring would most often be connected to power supply. The
CPU V-core voltage, +3.3V and battery voltage can directly connect to these analog inputs. The –
5V, –12V and +12V inputs should be reduced a factor with external resistors to meet the input range.
As Figure 7 shows.
R1
V1
Positive Input
Positive Inputs
12VIN
R2
+1.8Vcore
+1.5VINR0
+3.3VIN
VINR1
VBAT
5VSB
Pin 36
Pin 35
Pin 34
Pin 33
Pin 30
Pin 32
Pin 29
8-bit ADC
with
16mV LSB
R5
V3
Negative Input
R7
V4
N12VIN
N5VIN
Pin 31
Pin 28
Typical Thermister Connection
R8
R6
R
10K, 1%
VREF
Pin 37
VTIN3
Pin 38
RTHM
10K, 25 C
VTIN2
VTIN1
Pin 39
Pin 40
**The Connections of VTIN1 and VTIN2
are same as VTIN3
Figure 7.
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Publication Release Date: April 14, 2006
Revision 1.1