ADT7460ARQZ-RL7 ONSEMI [ON Semiconductor], ADT7460ARQZ-RL7 Datasheet - Page 38

• Manufacturer Part Number: ADT7460ARQZ-RL7
• Description: dBCOOL Remote Thermal Monitor and Fan Controller
• Manufacturer: ONSEMI [ON Semiconductor]

Table 55. Temp T
Bit No.
<2:0>
<7:4>
<3>
Mnemonic
RANGE
FREQ
THRM
RANGE
/PWM Frequency Register Bits
R/W
R/W
R/W
R/W
These bits control the PWMx frequency.
THRM = 1 causes the THERM pin (Pin 9) to assert low as an output when this temperature
channel’s THERM limit is exceeded by 0.25°C. The THERM pin remains asserted until the
temperature is equal to or below the THERM limit. The minimum time that THERM asserts for
is one monitoring cycle. This allows clock modulation of devices that incorporate this feature.
THRM = 0 makes the THERM pin act as an input only, for example, for Pentium 4 PROCHOT
monitoring, when Pin 9 is configured as THERM.
These bits determine the PWM duty cycle vs. temperature slope for automatic fan control.
000 = 11.0 Hz
001 = 14.7 Hz
010 = 22.1 Hz
011 = 29.4 Hz
100 = 35.3 Hz (default)
101 = 44.1 Hz
110 = 58.8 Hz
111 = 88.2 Hz
0000 = 2°C
0001 = 2.5°C
0010 = 3.33°C
0011 = 4°C
0100 = 5°C
0101 = 6.67°C
0110 = 8°C
0111 = 10°C
1000 = 13.33°C
1001 = 16°C
1010 = 20°C
1011 = 26.67°C
1100 = 32°C (Default)
1101 = 40°C
1110 = 53.33°C
1111 = 80°C
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ADT7460
38
Description