W83627DHG
Publication Release Date: Aug, 22, 2007
-17- Version
1.4
5.8 PECI
Interface
SYMBOL PIN I/O
DESCRIPTION
PECI 108
I/O
V3
INTEL
®
CPU PECI interface. Connect to CPU.
Vtt 107
Power
INTEL
®
CPU Vtt Power. This pin is connected to GND if the PECI
function is not in use.
PECISB
106 I/O
B
V3
INTEL
®
CPU PECI interface. Connect to ICH8.
5.9 SST
Interface
SYMBOL PIN I/O
DESCRIPTION
SST 114
I/O
V4
Simple Serial Transport (SST) Interface.
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.
SYMBOL PIN I/O
DESCRIPTION
PSIN#
IN
tu
Panel Switch Input.
This pin is active-low with an internal
pulled-up resistor.
GP56
68
I/OD
12t
General-purpose I/O port 5 bit 6.
PSOUT# OD
12
Panel Switch Output. This signal is used to wake-up the system
from S3/S5
state.
GP57
67
I/OD
12t
General-purpose I/O port 5 bit 7.
RSMRST#
OD
12
Resume reset signal output.
GP51
75
I/OD
12t
General-purpose I/O port 5 bit 1.
SUSB#
IN
t
System S3 state input.
GP52
73
I/OD
12t
General-purpose I/O port 5 bit 2.
PSON#
OD
12
Power supply on-off output.
GP53
72
I/OD
12t
General-purpose I/O port 5 bit 3.
PWROK
OD
12
This pin generates the PWROK signal while 3VCC comes in.
GP54
71
I/OD
12t
General-purpose I/O port 5 bit 4.
Summary of Contents for W83627DHG
Page 2: ......
