w83637hg Winbond Electronics Corp America, w83637hg Datasheet - Page 124

• Manufacturer Part Number: w83637hg
• Description: Winbond Lpc I/o 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. The range of CIR wake-up index register is in 0x20 - 0x2F.
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.
: CIR_STS. The Panel switch event is caused by CIR wake-up event. This bit is cleared
: PANSW_STS. The Panel switch event is caused by PANSW_IN. This bit is cleared by
: Mouse_STS. The Panel switch event is caused by Mouse wake-up event. This bit is
: Keyboard_STS. The Panel switch event is caused by Keyboard wake-up event. This bit
by reading this register.
reading this register.
cleared by reading this register.
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
x
x
0
1
0
1
MSXKEY
1
0
1
1
0
0
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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
Wake up event
Publication Release Date: March, 2006
W83637HF/HG
Revision 1.6