w83977tf Winbond Electronics Corp America, w83977tf Datasheet - Page 129

• Manufacturer Part Number: w83977tf
• Description: Winbond I/o
• 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.
CRE2 Keyboard Wake-up Data Register
CRE3 (Read only) Keyboard/Mouse Wake-up Status Register
CRE4 This Register is reserved for test.
CRF0 (Default 0x00)
Bit 0: KBXKEY. Enable any character received from Keyboard to wake-up the system.
Bit 7-3: Reserved.
Bit 2: PANSW_STS. The Panel switch event is caused by
Bit 1: Mouse_STS. The Panel switch event is caused by Mouse wake-up event. This bit is
Bit
Bit 7: CHIPPME. Chip level power management enable.
Bit 6 - 4: Reserved. Return zero when read.
Bit 3: PRTPME. Printer port power management enable.
Bit 2: FDCPME.
Bit 1: URAPME.
Bit 0: URBPME.
0: Keyboard_STS. The Panel switch event is caused by Keyboard wake-up event. This bit is
= 0
= 1
reading this register.
cleared by reading this register.
cleared by reading this register.
= 0
= 1
= 0
= 1
= 0
= 1
= 0
= 1
= 0
= 1
CRF0.bit7 (CHIPPME) is also set to 1.
Only predetermined specific key combination can wake up the system.
Any character received from Keyboard can wake up the system.
disable the ACPI/Legacy and the auto power management functions
enable the ACPI/Legacy and the auto power management functions.
disable the auto power management functions.
enable the auto power management functions provided
disable the auto power management functions.
enable the auto power management functions provided
CRF0.bit7 (CHIPPME) is also set to 1.
disable the auto power management functions.
enable the auto power management functions provided
CRF0.bit7 (CHIPPME) is also set to 1.
disable the auto power management functions.
enable the auto power management functions provided
CRF0.bit7 (CHIPPME) is also set to 1.
FDC
UART A
UART B
power management enable.
power management enable.
power management enable.
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PANSWIN
Publication Release Date: March 1998
. This bit is cleared by
W83977TF
PRELIMINARY
Revision 0.62