W83627EG Nuvoton Technology Corporation of America, W83627EG Datasheet - Page 59

• Manufacturer Part Number: W83627EG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627EG

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

SMART FAN
Concept
SMART FAN
W83627EHF/EHG controls the fan speed so that the temperature could meet the target temperature
set in the BIOS or software.
W83627EHF/EHG support SMART FAN
while Pin120 (CPUFANOUT1) pairs with Pin104 (SYSTIN), Pin103 (CPUTIN), or Pin102 (AUXTIN),
which is defined in Bank0 Index 4Ah.bit7~6.
Figure 7.9, 7.10, and 7.11 illustrate SMART FAN
described as follows:
SYSFANOUT
CPUFANOUT0
AUXFANOUT
CPUFANOUT1
TM
TM
III
Pin 103 CPUTIN
Pin 104 SYSTIN
Pin 102 AUXTIN
III mode sets a target temperature through BIOS or application software and
CR[05h]
CR[06h]
CR[13h]
CR[63h]
Only Pin115 (CPUFANOUT0) and Pin120 (CPUFANOUT1) in
TM
CR[07h]
Bit0-3
CR[07h]
Bit4-7
CR[14h]
Bit0-3
CR[62h]
Bit0-3
III.
W83627EHF/EF, W83627EHG/EG
Pin115 (CPUFANOUT0) pairs with Pin103 (CPUTIN);
- 48 -
TM
III mode, and the algorithm of fan speed control is
Pin 115 CPUFANOUT0
Pin 120 CPUFANOUT1
CR[12h]
Bit5
CR[12h]
Bir4
CR[12h]
Bit3
CR[12h]
Bit6
CR[0Eh]
CR[0Fh]