參數(shù)資料
型號： 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)： 62/134頁
文件大?。?/td> 600K
代理商： TP6508
P.59
Extended Indexed Register SREG D2: Power Management Control Register
This is a read/write register.
Port address is Hex 3C5.
Default value after hardware reset is Hex 00.
D0
D1
D2
D3
D4
D5
D6
D7
Reserved
Select OFF pin as input pin
Select OFF pin control as active high control signal
Select standby timer as suspend timer
Force into standby mode
Force into suspend mode
Force into off mode
Select Cover-Close mode (CRT display only this bit must =1)
Bit 0
Bit 1
Bit 2
Reserved.
A logical 1 select OFF pin as input pin, and a logical 0 select it as output pin.
A logical 0 select OFF pin signal polarity as active low, and a logical 1 select OFF pin signal polarity
as active high.
A logical 1 select standby timer as suspend timer, then we can program this timer to change state from
active mode to suspend mode and not to standby mode. A logical 0 we can program this timer to
change state from active mode to standby mode.
User can to change state from active mode to standby mode by software programming this bit to
logical 1.
User can to change state to suspend mode by software programming this bit to logical 1.
User can to change state to off mode by software programming this bit to logical 1.
A logical 1 select into 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 programmed this bit to logical 1 . 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.
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Extended Indexed Register SREG D3: Backlight and Standby Timer Register
This is a read/write register.
Port address is Hex 3C5.
Default value after hardware reset is Hex 00.
D0-3 Timer for backlight control bit 0 to 3 (Unit : 1 minute error -1/16 minute)
D4-7 Timer for standby/suspend control bit 0 to 3 (Unit : 2 minute error -1/8 minute)
(User can use the value of 00 to disable the timer for power management .)
These bits are used to program the time that panel's backlight turn off after active mode
into standby mode . The timer clock base is 14.318MHz for internal C.G. or external
OSC. pin clock input divided by 4 .
These bits are used to program the time that active mode go into standby/suspend mode
after the system was in the rest state.
Bit 0-3
Bit 4-7
Extended Indexed Register SREG D4 : Activity Monitoring Register
This is a read/write register.
Port address is Hex 3C5.
Default value after hardware reset is Hex 00.
D0
D1
D2-3 Reserved
D4
Enable VGA access to reset standby/off timer
Enable VGA access to reset backlight timer
Enable Keyboard activity to reset backlight timer
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