W83781D Datasheet, PDF (28/53 Pages) Winbond – MONITORING IC

8.9 IRQ Mask Register 2  Index 46h (Bank 0)
Register Location:
Power on Default Value
Attribute:
Size:
46h
<7:0> = 01000000 binary
Read/Write
8 bits
7 6 5 4 32 1 0
IN4
-IN5
-IN6
FAN3
Case Open
Reserved
Reserved
Chassis Clear
W83781D
PRELIMINARY
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 32 1 0
VID0
VID1
VID2
VID3
FAN1 RPM Control
FAN1 RPM Control
FAN2 RPM Control
FAN2 RPM Control
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Publication Release Date : Nov. 1997
Revision 0.60