W83627EG Nuvoton Technology Corporation of America, W83627EG Datasheet - Page 44

• 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

S: Strapping; x: chip version.
7. HARDWARE MONITOR
7.1
The W83627EHF/EHG can be used to monitor several critical hardware parameters of the system,
including power supply voltages, fan speeds, and temperatures, which are very important for a
high-end computer system to work stable and properly. W83627EHF/EHG provides LPC interface to
access hardware.
An 8-bit analog-to-digital converter (ADC) was built inside W83627EHF/EHG. The W83627EHF/EHG
can simultaneously monitor 6 analog voltage inputs (intrinsic monitor VBAT, 3VSB, 3VCC,& AVCC
power), 5 fan tachometer inputs, 3 remote temperature, one case-open detection signal. The remote
temperature sensing can be performed by thermistors or directly from Intel
diode output. Also the W83627EHF/EHG provides: 4 PWM (pulse width modulation) outputs for the
fan speed control or 4 DCFAN outputs for the fan speed control; beep tone output for warning;
SMI#(through SERIRQ or OVT# pin) , OVT# signals for system protection events.
Through the application software or BIOS, the users can read all the monitored parameters of system
from time to time. And a pop-up warning can be also activated when the monitored item was out of
the proper/preset range. The application software could be Nuvoton's Hardware Doctor
management application software. Also the users can set up the upper and lower limits (alarm
thresholds) of these monitored parameters and to activate one programmable and masked interrupts.
General Description
INDEX
2Ah
2Bh
2Ch
2Dh
2Eh
28h
29h
2Fh
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
W83627EHF/EF, W83627EHG/EG
-33-
DEFAULT VALUE
50h
00h
E2h
21h
00h
00h
00h
Reserved
Publication Release Date: April 7, 2009
Multi-function Pin Selection
Multi-function Pin Selection
Multi-function Pin Selection
TM
Deschutes CPU thermal
DESCRIPTION
Global Option
I
2
C pin select
Reserved
Reserved
Version 1.94
TM
or other