W83627UHG Nuvoton Technology Corporation of America, W83627UHG Datasheet - Page 152

• Manufacturer Part Number: W83627UHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627UHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V, 5V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1) Any key – Set bit 0 at Logical Device A, CR[E0h] to “1” (Default).
2) Specific keys (Password) - Set bit 0 at Logical Device A, CR[E0h] to “0”.
Three sets of specific key combinations are stored at Logical Device A. CR[E1h] is an index register to
indicate which byte of key code storage (0x00h ~ 0x0Eh, 0x30h ~ 0x3Eh, 0x40h ~ 0x4Eh) is going to
be read or written through CR[E2h]. According to IBM 101/102 keyboard specification, a complete key
code contains a 1-byte make code and a 2-byte break code. For example, the make code of “0” is
0x45h, and the corresponding break code is 0xF0h, 0x45h.
The approach to implement Keyboard Password Wake-Up Function is to fill key codes into the
password storage. Assume that we want to set “012” as the password. The storage should be filled as
below. Please note that index 0x09h ~ 0x0Eh must be filled as 0x00h since the password has only
three numbers.
Index(CRE1)
D a t a (CRE2)
13.2.2
The mouse Wake-Up function is enabled by setting Logical Device A, CR[E0h], bit 5 to “1”.
The following specific mouse events can be used for the wake-up:
Three control bits (ENMDAT_UP, MSRKEY, MSXKEY) define the combinations of the mouse wake-up
events. Please see the following table for the details.
(LOGICAL DEVICE A,
CR[E6H], BIT 7)
ENMDAT_UP
Any button clicked or any movement
One click of the left or the right button
One click of the left button
One click of the right button
Two clicks of the left button
Two clicks of the right button.
Waken up by Mouse events
1
1E
00
(LOGICAL DEVICE
A, CR[E0H], BIT 4)
01
F0
Table 13-2 Definitions of Mouse Wake-Up Events
MSRKEY
1E
02
x
03
16
04
F0
CR[E0H], BIT 1)
05
16
DEVICE A,
(LOGICAL
MSXKEY
-137-
06
45
1
F0
07
08
45
Any button clicked or any
movement.
Publication Release Date: March 24, 2008
09
00
WAKE-UP EVENT
0A 0B 0C 0D 0E
First-pressed key “0”
Second-pressed key “1”
Third-pressed key “2”
00
00
W83627UHG
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Revision 1.44
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