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PC8374L Datasheet(PDF) 189 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC8374L
Description  SensorPathTM SuperI/O with Glue Functions
PDF  239 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC8374L Datasheet(HTML) 189 Page - National Semiconductor (TI)

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8.0 Health Management (HM) (Continued)
Revision 1.1
189
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8.5.79 FANPWM1 Minimum
Location: 64h
Type:
R/W or RO (Becomes read-only when LOCK bit in the Configuration register is set.)
8.5.80 FANPWM2 Minimum
Location: 65h
Type:
R/W or RO (Becomes read-only when LOCK bit in the Configuration register is set.)
8.5.81 FANPWM3 Minimum
Location: 66h
Type:
R/W or RO (Becomes read-only when LOCK bit in the Configuration register is set.)
8.5.82 FANPWM1 Maximum Duty
FANPWM1 maximum duty cycle.
Location: 70h
Type:
R/W or RO (Becomes read-only when LOCK bit in the Configuration register is set.)
Bit
76543210
Name
PWM_MIN
Reset
10000000
Bit
Description
7-0
PWM_MIN. Holds the value of the minimum duty cycle of the FANPWM signal. This value is used to generate
the FANPWM output in Automatic mode if the zone temperature is lower than the low limit set in the associated
Zone Temperature Limit register and the associated MIN_EN bit in the associated Min/Off, Spike Smoothing
register is set to 1. The default is 80h=50% duty cycle.
Bit
76543210
Name
PWM_MIN
Reset
10000000
Bit
Description
7-0
PWM_MIN. Same as PWM_MIN in FANPWM1 Minimum register, but for FANPWM2.
Bit
76543210
Name
PWM_MIN
Reset
10000000
Bit
Description
7-0
PWM_MIN. Same as PWM_MIN in FANPWM1 Minimum register, but for FANPWM3.
Bit
76543210
Name
MAX_PWM
Reset
11111111
Bit
Description
7-0
MAX_PWM. Holds the maximum allowed duty-cycle for the associated FANPWM signal. It affects all modes except
manual mode (in manual mode, the maximum allowed duty-cycle is always 100%). A value of 01h represents 0.4%
duty cycle, a value of FFh represents 100% duty cycle. The value 00h is reserved. The default is 100% duty-cycle.
Note: After START bit in the Configuration register is set, changes to this register take effect only when the
FANPWM1 duty cycle is updated.
Winbond Electronics Corp. Advanced PC Product Center



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