W83L786NR Datasheet, PDF (24/50 Pages) Winbond – H/W Monitoring IC

W83L786NR/ W83L786NG
REGISTER
Non-Stop Duty Cycle
Duty Level 1
Duty Level 2
Duty Level 3
Temp Point 1
Temp Point 2
Temp Point 3
Temp Point 4
Tolerance
D+, D- – FAN1
CR[81h] b3:b0
CR[81h] b7:b4
CR[82h] b3:b0
CR[82h] b7:b4
CR[83h] b7:b0
CR[84h] b7:b0
CR[85h] b7:b0
CR[86h] b7:b0
CR[8Dh] b3:b0
VTIN1 – FAN2
CR[87h] b3:b0
CR[87h] b7:b4
CR[88h] b3:b0
CR[88h] b7:b4
CR[89h] b7:b0
CR[8Ah] b7:b0
CR[8Bh] b7:b0
CR[8Ch] b7:b0
CR[8Dh] b7:b4
7.6.5 Fan Fault (FAN_FAULT #)
W83L786NR/NG provides a good protection for fan speed. Set Pin 1 (FAN_FAULT#) to monitor fan
speed. When FANIN1 (Pin8) or FANIN2 (Pin9) exceeds fan count high limit in VR3B or VR3C. Pin1
FAN_FAULT# will be asserted (Figure 13).
F an co u n t lim it
FA N _FA U LT#
F ig u re 1 3 . F A N _ F A U L T
7.7 Fault Signal—INT#
7.7.1 Temperature
Pin INT# for temperature has 3 modes.
7.7.1.1. Comparator Interrupt Mode
Temperature exceeding T_O causes an interrupt and this interrupt will be reset when reading all of the
Interrupt Status Registers. Once an interrupt event has occurred by exceeding T_O, then reset, if the
temperature remains above the T_HYST, the interrupt will occur again when the next conversion has
completed. If an interrupt event has occurred by exceeding T_O and not reset, the interrupts will not
occur again. The interrupts will continue to occur in this manner until the temperature goes below
T_HYST. (Figure 14-1)
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Publication Release Date: March 31, 2006
Revision 0.9