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PC8374L Datasheet(PDF) 186 Page - National Semiconductor (TI) |
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PC8374L Datasheet(HTML) 186 Page - National Semiconductor (TI) |
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186 / 239 page  8.0 Health Management (HM) (Continued) www.national.com 186 Revision1.1 8.5.74 Min/Off, Spike Smoothing 1 Location: 62h Type: R/W or RO (Becomes read-only when LOCK bit in the Configuration register is set.) Table 59. Temperature Filtering Configuration 8.5.75 Min/Off, Spike Smoothing 2 Location: 63h Type: R/W or RO (Becomes read-only when LOCK bit in the Configuration register is set.) Bit 76543210 Name MIN_EN3 MIN_EN2 MIN_EN1 Reserved FILT1_EN TEMP_FILT1 Reset 00000000 Bit Description 7 MIN_EN3. Enables using Minimum PWM Duty Cycle 3 (see Section 8.5.81 on page 189) for FANPWM3 when the measured temperature falls below the Zone ‘n’ Temperature Limit register. 0: FANPWM duty cycle at 0% when the temperature is below limit (default) 1: FANPWM duty cycle at Minimum PWM Duty Cycle when the temperature is below limit 6 MIN_EN2. Enables using Minimum PWM Duty Cycle 2 (see Section 8.5.80 on page 189) for FANPWM2 when the measured temperature falls below the Zone ‘n’ Temperature Limit register. 0: FANPWM duty cycle at 0% when the temperature is below limit (default) 1: FANPWM duty cycle at Minimum PWM Duty Cycle when the temperature is below limit 5 MIN_EN1. Enables using Minimum PWM Duty Cycle 1 (see Section 8.5.79 on page 189) for FANPWM1 when the measured temperature falls below the Zone ‘n’ Temperature Limit register. 0: FANPWM duty cycle at 0% when the temperature is below limit (default) 1: FANPWM duty cycle at Minimum PWM Duty Cycle when the temperature is below limit 4 Reserved. 3 FILT1_EN. Enable temperature filtering for Zone1. 2-0 TEMP_FILT1. Sets temperature low-pass filtering for temperature input to FANPWM1 Duty Cycle generator according to Table 59 on page 186. Filter rise time is from 0% to 95% of the input temperature change. This field may be changed only when the START bit in Configuration register is set to 0. TEMP_FILT Rise Time [sec] ‘000’ 24.4(default) ‘001’ 13.8 ‘010’ 8.4 ‘011’ 6.4 ‘100’ 3.6 ‘101’ 1.4 ‘110’ 1.0 ‘111’ 0.62 Bit 76543210 Name FILT2_EN TEMP_FILT2 FILT3_EN TEMP_FILT3 Reset 00000000 Bit Description 7 FILT2_EN. Enable temperature filtering for Zone2. Winbond Electronics Corp. Advanced PC Product Center |
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