W83627DHG Nuvoton Technology Corporation of America, W83627DHG Datasheet - Page 55

• Manufacturer Part Number: W83627DHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627DHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.6.3.2.
Four pairs of fan input sensors and fan outputs in Fan Speed Cruise
Fan Speed Cruise
by a fan speed count (the amount of time between clock input signals, not the number of clock input
signals in a period of time) and an interval (e.g., 160 ± 10). As long as the fan speed count is in the
specified range, fan output remains the same. If the fan speed count is higher than the high end (e.g.,
170), fan output increases to make the count lower. If the fan speed count is lower than the low end
(e.g., 150), fan output decreases to make the count higher. One example is illustrated in this figure.
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SYSFANIN and SYSFANOUT
CPUFANIN0 and the temperature sensor selected by Bank0 Index 49h, bits 2 ~ 0
AUXFANOUT and the temperature sensor selected by Bank0 Index 49h, bits 6 ~ 4
CPUFANOUT1 and the temperature sensor selected by Bank0 Index 4Ah, bits 7 ~ 5
Fan Speed Cruise
TM
mode keeps the fan speed in a specified range. First, this range is defined in BIOS
TM
Mode
-43-
Publication Release Date: Aug, 22, 2007
TM
mode.
W83627DHG
Version 1.4