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| 型號(hào)： | W83977CTF-AW |
| 英文描述： | PERIPHERAL (MULTIFUNCTION) CONTROLLER |
| 中文描述： | 周邊（多功能）控制器 |
| 文件頁(yè)數(shù)： | 92/161頁(yè) |
| 文件大?。?/td> | 592K |
| 代理商： | W83977CTF-AW |
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W83977EF/ CTF
PRELIMINARY
Publication Release Date: March 1999
-83 -
Revision A1
6.6
OnNow / Security Keyboard and Mouse Wake-Up
---- Programmable Keyboard / Mouse Wake-Up Functions
Winbond's unique programmable keyboard/ mouse Wake-Up functions provide the system with
diversified methods for either OnNow Wake-Up application, or security control application. The
keyboard or mouse can Wake-Up the system by producing a panel switch low pulse on PANSWOT#
pin, and connect it to chipset (for example Intel
TM
chipset TX, LX PIIX4) panel switch input. The
Wake-Up conditions can be programmed as pre-determined or any keys/buttons. To implement this
function, a 32.768KHz crystal must be installed between XTAL1 and XTAL2, or a 32.768KHz clock to
be connected to XTAL1 and leave XTAL2 open. The V
SB
pin must be connected to +5V V
SB
of ATX
power supply, and an external battery should be installed on V
BAT
pin to store the data (the
passwords and Wake-Up status which had been set already) when power fails.
6.6.1 Keyboard Wake-Up Function
The keyboard Wake-Up function is enabled by setting LD-0A CR-E0 bit 6. The pre-determined keys
data are stored in registers, and they can be accessed by an indirect method. First, write their index
address to LD-0A CR-E1, then access them by reading/writing LD-0A CR-E2. A zero data is written
to the register means the comparison of this register will be ignored. The pre-programmed keys may
be 1 to 5 keys with various combinations. If LD-0A CR-E0 bit 0 is set, the system will be woken up
after any key is struck.
6.6.2 Keyboard Password Wake-Up Function
To implement this function, the bit 7 of LD-0A CR-E0 must be set, and panel switch input is
connected to PANSWIN# pin. Thus PANSWIN# is blocked to PANSWOUT#, by setting LD-0A CR-
E0 properly so that only the keyboard can Wake-Up the system with preset keys (password).
6.6.3 Mouse Wake-Up Function
The mouse Wake-Up function is activated by setting bit 5 of LD-0A CR-E0. If bit 1 of LD-0A CR-E0 is
set, any movement or button clicking will make up the system. Otherwise, the mouse can Wake-Up
the system only by clicking its button twice successively with the mouse unmoved. The bit 4 of LD-
0A CR-E0 determines which button (left or right) is to perform Wake-Up function.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W83977CTF-PW | PERIPHERAL (MULTIFUNCTION) CONTROLLER |
| W83977TF(EOL) | W83877TF plus KBC. CIR. RTC |
| W83C42 | KEYBOARD CONTROLLER |
| W83C42P | KEYBOARD CONTROLLER |
| W83C45 | Keyboard Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W83977CTF-PW | 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O |
| W83977EF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND ISA I/O |
| W83977EF-AW | 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND ISA I/O |
| W83977EF-PW | 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O |
| W83977EG | 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND ISA I/O |
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