W83627UHG Nuvoton Technology Corporation of America, W83627UHG Datasheet - Page 59

• Manufacturer Part Number: W83627UHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627UHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V, 5V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

If the current temperature falls lower than (Target Temperature 1 － Temperature Tolerance), the fan
speed is reduced one step again, and the target temperature shifts to (Target Temperature 1 －
Temperature Tolerance), or Target Temperature 2. This process repeats whenever the current
temperature is lower than (Target Temperature X － Temperature Tolerance) or until the fan speed
reaches its minimum speed.
(5) If the current temperature is always lower than (Target Temperature X － Temperature Tolerance),
The following tables show the current temperature, fan output value and the relative control registers
at S
Current CPU
Temperature
Current
CPUFANOUT
Output Value
DESCRIPTION
the fan speed decreases slowly to zero or to a specified stop value. The stop value is enabled by
register Bank0, 12h, bit 4 and the stop value is specified in Bank0, Index 09h. The fan remains at
the stop value for the period of time defined in Bank0, Index 0Dh.
MART
Step
Step
Max. Fan Output
Max. Fan Output
Min. Fan Output
Min. Fan Output
(DC / PWM)
(DC / PWM)
Fan output
Fan output
Output Value
Output Value
F
Figure 7-16 S
Fan Initial
Fan Initial
AN
TM
III mode.
Bank1, Index
50h ,51h
Bank0, Index
03h
Current Temp. < Target Temp. - Tol .
Current Temp. < Target Temp. - Tol .
REGISTER
ADDRESS
Table 7-9 Display Register – at S
MART
F
AN
Tar 3
Tar 3
TM
Tolerance
Tolerance
CPUTIN Temperature
Sensor
CPUFANOUT Output
Value Select
III Mechanism (Current Temp. < Target Temp. – Tol.)
Tar 2
Tar 2
REGISTER NAME
Tar 1
Tar 1
Tar
Tar
-48-
MART
F
Read only
80h / FFh by
strapping
ATTRIBUTE
AN
TM
III Mode
W83627UHG
8 MSB, 1°C bit 7,
0.5 °C
Bits 7-0
CPUFANOUT Value
Temperature
Temperature
BIT DATA