W83L784R_05 Datasheet, PDF (18/52 Pages) Winbond – Monitoring IC

W83L784R/ W83L784G
granularity of temperature separation between each OVT# output signal can be programmed at Bank0
CR [4Fh].
The priority of this mode is higher than Comparator mode and Interrupt mode.
('C)
100
90
80
Current Temperature
70
60
50
40
30
20
10
0
OVT#
Figure 13
6.4.3.2. Comparator Mode
At this mode, temperature exceeding T_O causes the OVT# output activated until the temperature is
less than T_HYST. (Figure 14)
6.4.3.3. Interrupt Mode
At this mode, temperature exceeding T_O causes the OVT# output activated indefinitely until reset by
reading CPUT1 or CPUT2 registers. Temperature exceeding T_O, then OVT# asserted, and then
temperature going below T_HYST will also cause the OVT# activated indefinitely until reset by reading
temperature sensor2 or sensor 3 registers. Once the OVT# is activated by exceeding T_O, then reset, if
the temperature remains above T_HYST, the OVT# will not be activated again.( Figure 14)
To
T_HYST
(Comparator Mode; default)
(Interrupt Mode)
OVT#
OVT#
*
*
*
*
*Interrupt Reset when CPUT1/CPUT2 is
read
Figure 14
6.5 FAN Speed Count and FAN Speed Control
- 13 -
Publication Release Date: Jan. 2005
Revision 1.1