參數(shù)資料
型號(hào): GL841
英文描述: GL841 USB 2.0 2-in-1 Scanner Controller
中文描述: GL841的USB 2.0 2合1掃描儀控制器
文件頁數(shù): 22/50頁
文件大?。?/td> 1688K
代理商: GL841
GL841 USB 2.0 2-in-1 Scanner Controller
PWM
Duty
Frequency
Phase on time
6.21 Watch-Dog Protection
This function can automatically reset the system to initial state, whenever the system is held (no
access signal ) beyond the time limit.Be able to enable or disable this function by S/W.
This function can protect motor power, lamp power and ASIC system.
Calculation formula : (30sec.) x (times setting) x (setting no.).
The range of setting no. is 1~15;the range of times setting is 0~1.
6.22 Lamp Timeout Control
This circuitry can automatically reset the lamp power, whenever the system is setting. Be able to
enable or disable this function by S/W.
Calculation formula: (60sec.) x (times setting) x (setting no.).
The range of setting no. is 1~7;the range of times setting is 0~3.
6.23 Lamp Power Control
These are two power control ports for lamp. One is for Flatbed and the other is for XPA
(Transparency or film).
The resolution of its PWM type is 8 bits. Duty range is 1/256~256/256.
Note : carrier frequency is (system clock)/256.
6.24 Sensor Input
The system support home sensor input port.
6.25 16 GPIO ports
You can set input or output for each GPIO pin of the GPIO1~16 separately.
Such as keypads inputs, document sensor for sheet-fed or motor power control…etc.
Note : there are two pins for special function. One is GPIO12 and the other is GPIO11.
GPIO12 : 1. Pull up by resister to indicate that ASIC turn on lamp power whenever power on
initial.
2. Pull down by resister to indicate that ASIC turn off lamp power whenever power
on initial.
3. This pin can control bi-polar motor driver 2916,6219,3966 or 3955 Vref in order to
control Imax. current.
GPIO11 : This pin can control bi-polar motor driver 2916,6219,3966 or 3955 Vref in order to
control Imax. current.
Version 1.7
22
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