w83977eg Winbond Electronics Corp America, w83977eg Datasheet - Page 108

• Manufacturer Part Number: w83977eg
• Description: Winbond Isa I/o W83977ef W83977eg
• Manufacturer: Winbond Electronics Corp America

CRE1 (Default 0x00) Keyboard Wake-Up Index Register
This register is used to indicate which Keyboard Wake-Up Shift register or Predetermined key
Register is to be read/written via CRE2. The range of Keyboard Wake-Up index register is 0x00 -
0x0E,
CRE2 Keyboard Wake-Up Data Register
CRE3 (Read only) Keyboard/Mouse Wake-Up Status Register
CRE4 OnNow/Powerloss Control Register.
CRE5 (Default 0x00)
Bit 3: Reserved.
Bit 2: KB/MS Swap. Enable Keyboard/Mouse port-swap.
Bit 1: MSXKEY. Enable any character received from Mouse to Wake-Up the system.
Bit 0: KBXKEY. Enable any character received from Keyboard to Wake-Up the system.
Bit 7-4: Reserved.
Bit 4: POWERRESUME_STS. The bit is set after powerloss occured and cleared by
Bit 3: Revered
Bit 2: PANSW_STS. The Panel switch event is caused by PANSWIN#. This bit is cleared by
Bit 1: Mouse_STS. The Panel switch event is caused by Mouse Wake-Up event. This bit is
Bit 0: Keyboard_STS. The Panel switch event is caused by Keyboard Wake-Up event. This bit is
Bit 7: Powerloss Control bit 2.
Bit 6: Powerloss Control bit 1.
Bit 5: Powerloss Control bit 0.
Bit 4: 32KHz clock source select.
Bit 3: Reserved.
Bit 2: Reserved.
Bit 1-0: Reserved.
Bit 7: Reserved.
Bit 6 - 0: Compared Code Length. When the compared codes are storaged in the data register,
reading this register.
= 1
= 0
= 1
= 0
= 1
= 0
= 1
reading this register.
cleared by reading this register.
cleared by reading this register.
Select click on Mouse right-botton to Wake the system up.
Keyboard/Mouse ports are not swapped.
Keyboard/Mouse ports are swapped.
Just clicking Mouse left/right-botton twice can Wake the system up.
Just clicking Mouse left/right-botton once can Wake the system up.
Only predetermined specific key combination can Wake-Up the system.
Any character received from Keyboard can Wake-Up the system.
W83977EF-AW/W83977EG-AW
-106-