W83L786NR Datasheet, PDF (41/50 Pages) Winbond – H/W Monitoring IC

W83L786NR/ W83L786NG
8.39 FAN Initial Output Value – Index90h
Power on trapping
BIT
NAME
READ/WRITE
DESCRIPTION
7 FAN_3DST
Read
A one indicates FAN is working at 3D mode (for SMART
FAN^TM II Mode).
It can be programmed directly by I²C.
6-4 Reserved
Read/Write Reserved.
FAN Initial Speed.
VDD
Ra
FAN_SET
Rb
3-0
FANINI
[3:0]
Read/Write
Use two resistors to divide a four section to represent
different initial FAN Speed. The table is shown as following.
Section
3
2
1
0
FAN Speed rate
100﹪
81﹪
62﹪
43﹪
Ra
9.1K
4.7K
9.1K
×
Rb
×
9.1K
4.7K
9.1K
8.40 Fan Step down Time Register - Index 91h
Power on default [7:0] = 0001, 0100 b
BIT
NAME
READ/WRITE
DESCRIPTION
7-0 STEP_DOWN_T[7:0]
Read/Write
The time interval, which is 1-second unit, to
decrease DC output level in SMART FAN^TM II
Control mode.
8.41 Fan Step up Time Register - Index 92h
Power on default [7:0] = 0000, 1010 b
BIT
NAME
READ/WRITE
DESCRIPTION
7-0 STEP_UP_T[7:0]
Read/Write
The time interval, which is 1-second unit, to increase
DC output level in SMART FAN^TM II Control mode.
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