w83627thg Winbond Electronics Corp America, w83627thg Datasheet - Page 102

• Manufacturer Part Number: w83627thg
• Description: Winbond Lpc 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. The first set of wake up key combination is in the range of
0x00 - 0x0E, the second set 0x30 – 0x3E, and the third set 0x40 – 0x4E. Incoming key combination
can be read through 0x10 – 0x1E.
CRE2 Keyboard Wake-Up Data Register
This register holds the value of wake-up key register indicated by CRE1. This register can be
read/written.
CRE3 (Read only) Keyboard/Mouse Wake-Up Status Register
Bit 1
Bit 0
Bit 7-5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
: MSXKEY.
This bit combining with MSRKEY (bit 4 of CRE0 of logical device A) and ENMDAT_UP
(bit 7 of CRE6 of logical device A) define what kind of mouse wake-up event can trigger
an active low pulse on PSOUT#. Their combination is described in the following table.
: KBXKEY. Enable any character received from Keyboard to wake-up the system
= 0
= 1
: Reserved.
: PWRLOSS_STS: This bit is set when power loss occurs.
Reserved
: PANSW_STS. The Panel switch event is caused by PANSW_IN. This bit is cleared by
reading this register.
: Mouse_STS. The Panel switch event is caused by Mouse wake-up event. This bit is
cleared by reading this register.
: Keyboard_STS. The Panel switch event is caused by Keyboard wake-up event. This
bit is cleared by reading this register.
ENMDAT_UP
1
1
0
0
0
0
Only predetermined specific key combination can wake up the system.
Any character received from Keyboard can wake up the system.
MSRKEY
0
1
0
1
x
x
MSXKEY
1
1
0
0
1
0
- 95 -
Any button click or any movement
one click of left/right button
one click of left button
one click of right button
two times click of left button
two times click of right button
W83627THF/W83627THG
Publication Release Date: September 26, 2006
WAKE UP EVENT
Revision 1.2