NT6828 查看數據表（PDF） - Novatek Microelectronics

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NT6828

I2C Bus Controlled On-Screen Display

Novatek Microelectronics 

NT6828

(5) OSD Screen Position Control Registers: Row 15, Column 12 - 13

Row 15

Column 12

7

6

MSB

5

4

3

2

VPOS

Vertical Position Adjustment

1

0

LSB

Bit 7 - 0: VPOS - These bits determine the vertical starting position for the OSD screen display. It is the vertical delay

starting from the leading edge of VFLB. The unit of this setting is 4 horizontal lines.

The equation is defined as:

Vertical delay = (Vpos x 4 +1) x Horizontal Line

The default value of it is 4 ($04) after power on. Please refer Figure 5.

Row 15

Column 13

7

MSB

6

5

4

3

2

1

HPOS

Horizontal Position Adjustment

0

LSB

Bit 7 - 0: HPOS- These bits determine the horizontal starting position for the OSD screen display. It is the horizontal

delay starting from the leading edge of HFLB. The unit of this setting is a 6-dot movement shift to the right on

the monitor screen. The equation is defined as:

Horizontal delay = (Hpos x 6 + 49) / P.R.

Where the P.R. (pixel rate) is defined by the HDR & Horizontal Frequency.

P.R. (Pixel Rate) = HDR * 12 * FreqHFLB

Please refer to the HDR control register at row15 / column15 for the P.R. setting.

After power-on, the default value of these bits is 15 ($ 0F). (Please refer to Figure 5.)

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