W83627EG Nuvoton Technology Corporation of America, W83627EG Datasheet - Page 193

• 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

12. POWER MANAGEMENT EVENT
The PME# (pin 86) signal is connected to the South Bridge and is used to wake up the system from S1
~ S5 sleeping states.
One control bit and four registers in the W83627EHF/EHG/EF/EG are associated with the PME
function. The control bit is at Logical Device A, CR[F2h], bit[0] and is for enabling or disabling the PME
function. If this bit is set to “0”, the W83627EHF/EHG/EF/EG won’t output any PME signal when any of
the wake-up events has occurred and is enabled. The four registers are divided into PME status
registers and PME interrupt registers of wake-up events
1) The PME status registers of wake-up event:
2) The PME interrupt registers of wake-up event:
Note.1
12.1 Resume Reset Logic
The RSMRST# (Pin 75) signal is a reset output and is used as the 3VSB power-on reset signal for the
South Bridge.
PME wake-up events that the W83627EHF/EHG/EF/EG supports include:
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At Logical Device A, CR[F3h] and CR[F4h]
Each wake-up event has its own status
The PME status should be cleared by writing a “1” before enabling its corresponding bit in the
PME interrupt registers
At Logical Device A, CR[F6h] and CR[F7h]
Each wake-up event can be enabled / disabled individually to generate a PME# signal
Mouse IRQ event
Keyboard IRQ event
Printer IRQ event
Floppy IRQ event
UART A IRQ event
UART B IRQ event
Hardware Monitor IRQ event
WDTO# event
MIDI IRQ event
RIB (UARTB Ring Indicator) event
W83627EHF/EF, W83627EHG/EG
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Note.1
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