NT68625MEFG-128 查看數據表（PDF） - Novatek Microelectronics

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NT68625MEFG-128

Flat Panel Monitor Controller

Novatek Microelectronics 

NT68665/NT68625

6.4. Graphic Port Capture Interface

The function of Graphic Port Capture Interface is to provide two interfaces between

NT68665/NT68625 and external input devices. It can process non-interlaced and interlaced RGB

graphic input, and DVI input. User should select the video input source from Graphic Port (VGA or DVI)

and the polarity of external control signal, and then program the H/V captures size registers to indicate

the display area.

6.5. Video Port Capture Interface

The function of Video Port Capture Interface is to provide Digital YUV interface between

NT68665/NT68625 and video decoder. It can process non-interlaced and interlaced digital YUV video

ITU BT656 input. It includes color space conversion for YUV to RGB color space conversion.

6.6. Auto Tune

The Auto Tune function consists of Auto Gain, Auto Position, and Auto Phase. With such auto

adjustment support it is possible to measure the correct phase, frequency, gain, and offset of ADC.

The horizontal and vertical back porches of input image and the horizontal and vertical active regions

can also be measured.

Figure 6.6-1 DISP_AUTO = 0

CAP_HS

CAP_HW

CAP_VS

Figure 6.6-2 DISP_AUTO

2006-02-09

21

Ver. 0.40

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