W83627DHG Nuvoton Technology Corporation of America, W83627DHG Datasheet - Page 29

• 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

5.8
5.9
5.10 Advanced Configuration and Power Interface
The Advanced Configuration and Power Interface (ACPI) is an interface that allows OS-directed Power
Management (OSPM). The ACPI replaces the APM (Advanced Power Management), MPS
(Multiprocessor Specification), and PnP BIOS Specification. In addition to power management, the
ACPI supports the functions of thermal management, state management, and speed control, as well as
the global system states and different device power states. Two of the primary states that the
W83627DHG supports are the S0 (working) and S3 (suspend to RAM) states. S0 is a full-power state,
in which the computer is actively used. S3 is a sleeping state, in which the processor is powered down,
but the memory, where the last procedural state is stored, is still active. By employing the ACPI, the
system conserves more energy through transiting unused devices into lower power states, including
placing the entire system in a low-power state when possible.
RSMRST#
SYMBOL
PSOUT#
PWROK
PSON#
SUSB#
PSIN#
SYMBOL
SYMBOL
GP56
GP57
GP51
GP52
GP53
GP54
PECISB
PECI Interface
SST Interface
PECI
SST
Vtt
PIN
68
67
75
73
72
71
108
107
106
114
PIN
PIN
I/OD
I/OD
I/OD
I/OD
I/OD
I/OD
OD
OD
OD
OD
IN
I/O
IN
Power
I/O
I/O
I/O
tu
12
12
12
I/O
I/O
12
t
12t
12t
12t
12t
12t
12t
V3
V3
B
V4
Panel Switch Input.
pulled-up resistor.
General-purpose I/O port 5 bit 6.
Panel Switch Output. This signal is used to wake-up the system
from S3/S5 state.
General-purpose I/O port 5 bit 7.
Resume reset signal output.
General-purpose I/O port 5 bit 1.
System S3 state input.
General-purpose I/O port 5 bit 2.
Power supply on-off output.
General-purpose I/O port 5 bit 3.
This pin generates the PWROK signal while 3VCC comes in.
General-purpose I/O port 5 bit 4.
INTEL
INTEL
function is not in use.
INTEL
Simple Serial Transport (SST) Interface.
®
®
®
CPU PECI interface. Connect to CPU.
CPU Vtt Power. This pin is connected to GND if the PECI
CPU PECI interface. Connect to ICH8.
-17-
This pin is active-low with an internal
DESCRIPTION
DESCRIPTION
DESCRIPTION
Publication Release Date: Aug, 22, 2007
W83627DHG
Version 1.4