W83627DHG Nuvoton Technology Corporation of America, W83627DHG Datasheet - Page 177

• 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

W83627DHG
14.1.1 PSON# Logic
14.1.1.1. Normal Operation
The PSOUT# signal will be asserted low if the PSIN# signal is asserted low. The PSOUT# signal is
held low for as long as the PSIN# is held low. The South Bridge controls the SUSB# signal through the
PSOUT# signal. The PSON# is directly connected to the power supply to turn on or off the power.
Figure 14.2 shows the power on and off sequences.
The ACPI state changes from S5 to S0, then to S5
PSON#
SUSB# (Intel Chipset)
SUSB# (Other Chipset)
PSOUT#
PSIN#
3VSB
S0 State
S5 State
S5 State
Figure 14.2
Publication Release Date: Aug, 22, 2007
-165-
Version 1.4