w83l786nr Winbond Electronics Corp America, w83l786nr Datasheet - Page 24

• Manufacturer Part Number: w83l786nr
• Description: W83l786nr W83l786ng Winbond H/w Monitoring Ic
• Manufacturer: Winbond Electronics Corp America

7.6.5
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).
7.7
7.7.1
Pin INT# for temperature has 3 modes.
7.7.1.1. Comparator Interrupt Mode
Temperature exceeding T
Interrupt Status Registers. Once an interrupt event has occurred by exceeding T
temperature remains above the T
completed. If an interrupt event has occurred by exceeding T
occur again. The interrupts will continue to occur in this manner until the temperature goes below
T
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
HYST
. (Figure 14-1)
Fault Signal—INT#
REGISTER
Fan Fault (FAN_FAULT #)
Temperature
F A N _ F A U L T #
F a n c o u n t l i m i t
O
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
causes an interrupt and this interrupt will be reset when reading all of the
D+, D- – FAN1
HYST
, the interrupt will occur again when the next conversion has
F i g u r e 1 3 . F A N _ F A U L T
- 19 -
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
W83L786NR/ W83L786NG
VTIN1 – FAN2
O
Publication Release Date: March 31, 2006
and not reset, the interrupts will not
O
, then reset, if the
Revision 0.9