W83793G Datasheet, PDF (71/131 Pages) Winbond – Winbond H/W Monitor

W83793G
Continued.
BIT
DESCRIPTION
Fan5(Enable Fan5 Smart Fan).
4
0: Fan5 has no relation with this temperature source.
1: Applies SmartFan control on Fan5 and this temperature.
Fan4(Enable Fan4 Smart Fan).
3
0: Fan4 has no relation with this temperature source.
1: Applies SmartFan control on Fan4 and this temperature.
Fan3(Enable Fan3 Smart Fan).
2
0: Fan3 has no relation with this temperature source.
1: Applies SmartFan control on Fan3 and this temperature.
Fan2(Enable Fan2 Smart Fan).
1
0: Fan2 has no relation with this temperature source.
1: Applies SmartFan control on Fan2 and this temperature.
Fan1(Enable Fan1 Smart Fan).
0 0: Fan1 has no relation with this temperature source.
1: Applies SmartFan control on Fan1 and this temperature.
Here using an example to explain the concept of TempFanSelect Mapping. Considering this case,
TD1FanSelect is set to 86_HEX, TD2FanSelect is set to 52_HEX, TD3FanSelect is set 20_HEX, and other 3
left unset.
We can spilt the six registers bit by bit as above figure, and give it a rotation, this help us to
understand the relationship from the point of fan easier. For Fan1 and Fan4 row, all temperature is de-
asserted, that means Fan1/Fan4 does not have any relationship with temperature, thus they are in
manual mode under this setting. For Fan2, it is clear that it has relation with temperature 1 and 2, so it
will activate SmartFan control with temperature 1/2 as it input.
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Publication Release Date: Dec. 11, 2006
Revision 1.0