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W83781D Datasheet(PDF) 26 Page - Winbond

Part # W83781D
Description  H/W MONITORING IC
Download  54 Pages
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Manufacturer  WINBOND [Winbond]
Direct Link  http://www.winbond.com
Logo WINBOND - Winbond

W83781D Datasheet(HTML) 26 Page - Winbond

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W83781D/W83781G
Publication Release Date: April 14, 2005
- 22 -
Revision 2.0
7
6
5
4
3
2
1
0
IN4
-IN5
-IN6
FAN3
Case Open
Reserved
Reserved
Chassis Clear
Bit 7:
The logical 1 outputs a minimum 20 ms active low pulse on the Case Open pin. The register
bit self clears after the pulse has been output.
Bit 6-5: Reserved. This bit should be set to 0.
Bit 4-0: The logical 1 disables the corresponding interrupt status bit for IRQ interrupt.
8.10 VID/Fan Divisor Register – Index 47h (Bank 0)
Register Location:
47h
Power on Default Value <7:4> is 0101, <3:0> is 0000
Attribute:
Read/Write
Size:
8 bits
7
6
5
4
3
2
1
0
VID0
VID1
VID2
VID3
FAN1 RPM Control
FAN1 RPM Control
FAN2 RPM Control
FAN2 RPM Control
Bit 7-6: FAN2 Speed Control.
<7:6> = 00 - divide by 1;
<7:6> = 01 - divide by 2;
<7:6> = 10 - divide by 4;
<7:6> = 11 - divide by 8.
Bit 5-4: FAN1 Speed Control.
<5:4> = 00 - divide by 1;
<5:4> = 01 - divide by 2;
<5:4> = 10 - divide by 4;
<5:4> = 11 - divide by 8.
Bit 3-0: The VID <3:0> inputs


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