參數(shù)資料
型號(hào): TP6508
英文描述: Pushbutton Switch; Actuator Diameter:0.078"; Circuitry:6PDT; Switch Operation:6 Changeover Push-Push; Contact Current Max:100mA; Leaded Process Compatible:Yes; Mounting Type:PCB; Switch Function:6PDT
中文描述: 顯卡
文件頁數(shù): 43/134頁
文件大小: 600K
代理商: TP6508
P.40
1->2
* I/O Register Programming
* Standby timer time-out
2->1
* Keyboard request
* VGA access
2->3
* I/O Register Programming
* Suspend timer time-out
3->1
* Keyboard request
* VGA access
3->4
* I/O Register Programming
* Off timer time-out
* OFF pin active
4->1
* Keyboard request
* VGA access
* OFF pin not active
Off mode is the lowest power mode . It may be initiated by the P.M.C. time-out
register, user I/O register programming or OFF/SUSPEND pin input . Resume may be initiated by the
OFF pin external trigger input. In this mode, system will turn off CPU cycle, CRT cycle, screen buffer,
display signal, internal dual frequency synthesizer and internal DAC , meanwhile, does DRAMs slow
refresh. Display memory and register accessing isn't allowed .
5. COVER-CLOSE MODE
Cover-close mode is the special power mode using for laptop PC. or Notebook PC.
system on closing the machine-cover . Specially, this mode replace OFF mode when the user pro-
grammed the extended register 3c4/3c5 index D2h bit 7 to logical 1 . It may be initiated by the OFF
pin. Resume may be initiated by external trigger input . In cover-close mode, system will turn off
panel backlight, and down saving internal partial panel block device power . Then the CRT display is
normal.
2
3
1
STANDBY
SUSPEND
ON
OFF
5
COVER-CLOSE
4
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