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S1D2502B01 Datasheet(PDF) 39 Page - Samsung semiconductor |
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S1D2502B01 Datasheet(HTML) 39 Page - Samsung semiconductor |
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39 / 61 page  S1D2502B01 VIDEO AMP MERGED OSD PROCESSOR FOR MONITORS 38 Preliminary • Other Color Effet The row attribute register's 'BREN' bit's function is shown in the Figure below. If you set the 'BREN' bit of the row with the letter A as '0' after selecting A and B's raster color as black, the raster color black will be displayed. But if you set the 'BREN' bit of the row with the letter B as '1', the raster color black becomes invisible, so the back raster color (gray) is displayed as if it is the raster color. Color blinking is using a selective control bit in blink mode to replace normal blinking with 8 different colors appearing in order on the font's character. Color blinking only replaces normal blinking, and blink time and blink duty are still applied at the same time. Therefore, if the blink duty is not set to off, only 3 ~ 4 colors may appear according to the blink duty, instead of all 8. SIZING/POSITIONING • Character Size Row attribute register's HZ bit[3:2] and VZ bit[1:0] control the character's vertical and horizontal size by factors of 1/2/3/4 in units of row. VZ is correctly expressed without regard to size since the next line is just pushed down in order, but HZ decides the column that the font occupies according to the size. For example, if HZ [1:0] = 0, 1, the font doubles in the horizontal direction, and one font takes up 2 columns. Therefore, the column address must move in the same amount as the HZ for the next font to be expressed correctly. in other words, if the horizontal size is doubled and takes up 2 columns, the next font must be put 2 columns back. Figure 14. Color Effect by BREN Bit Figure 15. Character Size by VZ, HZ Bits BREN bit = 0 & Rastor Color = Black BREN bit = 1 & Rastor Color = Black BREN bit = 1 & Rastor Color = Light Blue Gray Original VZ × 2 HZ × 2 |
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