w83627hf-pw Winbond Electronics Corp America, w83627hf-pw Datasheet - Page 106

Manufacturer Part Number

w83627hf-pw

Description

W83627hf/f W83627hg/g Winbond Lpc I/o

Manufacturer

Winbond Electronics Corp America

Datasheet

1.W83627HF-PW.pdf (131 pages)

CRE0 （ Default 0x00 ） , continued

CRE1（Default 0x00）Keyboard Password Wake-Up Index Register

CRE2 Keyboard Password Wake-Up Data Register

This register is used to indicate which Keyboard Wake-Up Shift register or predetermined key Reg-

ister is to be read or written via CRE2.

This register holds the value of wake-up key register indicated by CRE1.

W83627HF supports at most 5-key password wake-up function. CRE1 is an index register to indi-

cate which byte of key code storage (0X00 ~ 0X0E) is going to be read or written. 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 Key “0” is 0x45, and the corresponding break

code is 0xF0, 0x45. 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

must be filled as below. Please note that index 0x09 ~ 0x0e must be filled as 0x00 since the pass-

word has only three words.

Index

Data

BIT

1： Any character received from Keyboard can wake up the system.

ENCIRWAKEUP. Enable CIR to wake-up system via PANSW_OUT.

0： Disable CIR wake-up function.

1： Enable CIR wake-up function.

MSXKEY. Select either single or double click to wake-up the system.

0： Indicates mouse double click can wake the system up.

1： Indicates mouse single click can wake the system up.

KBXKEY. Enable any character received from Keyboard to wake-up the system

0： Only predetermined specific key combination can wake up the system.

KB/MS Swap. Enable Keyboard/Mouse port-swap.

0： Keyboard/Mouse ports are not swapped.

1： Keyboard/Mouse ports are swapped.

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DESCRIPTION

W83627HF/ F/ HG/ G

First-pressed key “0”

Second-pressed key “1”

Third-pressed key “2”