ADM1031
Table 26. REGISTER 0X23 FAN FILTER REGISTER POWER-ON DEFAULT = 50H
Bit
<7>
<6:5>
Name
Spin-Up Disable
Ramp Rate
R/W
R/W
R/W
Description
When set to 1, disables fan spin-up.
These bits set the ramp rate. (Default = 31 Hz)
00 = 1
01 = 2
10 = 4 (Default)
11 = 8
<4:2>
ADC Sample Rate
R/W
These bits set the sampling rate for the ADC.
000 = 87.5 Hz
001 = 175 Hz
010 = 350 Hz
011 = 700 Hz
100 = 1.4 kHz (Default)
101 = 2.8 kHz
110 = 5.6 kHz
111 = 11.2 kHz
<1>
<0>
Fan 2 Filter En
Fan 1 Filter En
R/W
R/W
This bit enables fan filtering for Fan 2.
This bit enables fan filtering for Fan 1.
Table 27. REGISTER 0X24 LOCAL TEMP T MIN /T RANGE POWER-ON DEFAULT = 41H
Bit
<7:3>
Name
> Local Temp T MIN
R/W
R/W
Description
Contains the minimum temperature value for automatic fan speed control based on
local temperature readings. T MIN can be programmed to positive values only in 4 ? C
increments. Default is 32 ? C.
00000 = 0 ? C
00001 = 4 ? C
00010 = 8 ? C
00011 = 12 ? C
|
|
01000 = 32 ? C (Default)
|
|
|
11110 = 120 ? C
11111 = 124 ? C
<2:0>
Local Temp T RANGE
R/W
This nibble contains the temperature range value for automatic fan speed control
based on the local temperature readings.
000 = 5 ? C
001 = 10 ? C (Default)
010 = 20 ? C
011 = 40 ? C
100 = 80 ? C
http://onsemi.com
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