W83781D Datasheet, PDF (31/53 Pages) Winbond – MONITORING IC

W83781D
PRELIMINARY
8.12 Value RAM  Index 20h- 3Fh or 60h Index 7Fh (auto-increment) (Bank 0),continued
Index A6-A0
Index A6-A0 with Auto-
Increment
Description
38h
78h
-IN6 Low Limit
39h
79h
Over Temperature Limit (High)
3Ah
7Ah
Temperature Hysteresis Limit (Low)
3Bh
7Bh
FAN1 Fan Count Limit
Note: It is the number of counts of the internal clock
for the Low Limit of the fan speed.
3Ch
7Ch
FAN2 Fan Count Limit
Note: It is the number of counts of the internal clock
for the Low Limit of the fan speed.
3Dh
7Dh
FAN3 Fan Count Limit
Note: It is the number of counts of the internal clock
for the Low Limit of the fan speed.
3E- 3Fh
7E- 7Fh
Reserved
Setting all ones to the high limits for voltages and fans (0111 1111 binary for temperature) means
interrupts will never be generated except the case when voltages go below the low limits.
Note1: For the high limits of the voltages, the device is doing a greater than comparison. For the low
limits, however, it is doing a less than or equal comparison.
Note 2: V-Core Table:
Processor Pins
0 = Connected to Vss
1 = Open or pull-up to Vin
VID4 VID3 VID2 VID1 VID0
0
1
1
1
1
0
1
1
1
0
0
1
1
0
1
0
1
1
0
0
0
1
0
1
1
0
1
0
1
0
0
1
0
0
1
0
1
0
0
0
0
0
1
1
1
Vcore
(VDC)
*
*
*
*
*
*
*
*
*
Processor Pins
0 = Connected to Vss
1 = Open or pull-up to Vin
VID4 VID3 VID2 VID1 VID0
1
1
1
1
1
1
1
1
1
0
1
1
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
0
1
1
0
0
1
1
1
0
0
0
1
0
1
1
1
Vcore
(VDC)
No CPU
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
- 26 -
Publication Release Date : Nov. 1997
Revision 0.60