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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STV2050A датащи(PDF) 40 Page - STMicroelectronics |
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STV2050A датащи(HTML) 40 Page - STMicroelectronics |
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40 / 83 page  40/83 STV2050A - VIDEO PATTERN GENERATOR 7.6 AUTO-ALIGNMENT PATTERN The auto-alignment pattern is a rectangular, highlighted part of a screen with a constant brightness (horizontal brightness). See Figure 23 "Auto-alignment Video Pattern" on page 40. The On/Off is controlled by the PAS[4] bit in the EA register The size and the position of the pattern can be controlled by the EB and EC registers. The pat- tern is defined by its horizontal and vertical start and stop values: HO1, HG1, HO2, HG2, VO1, VG1, VO2 and VG2. Offset position values must be one grid distance smaller than the vertical grid numbers for start or stop positions. Figure 23. Auto-alignment Video Pattern PAS[4] 0: Auto-alignment pattern off 1: Auto-alignment pattern on HG1[3:0] Grid number of horizontal pattern start HO1[5:0] Offset of horizontal pattern start (number of clock cycles, 1 grid max.) HG2[3:0] Grid number of horizontal pattern end HO2[5:0] Offset of horizontal pattern end (number of clock cycles, 1 grid max.) VG1[3:0] Grid number of vertical pattern start VO1[5:0] Offset of vertical pattern start (number of video lines, 1 grid max.) VG2[3:0] Grid number of vertical pattern end VO2[5:0] Offset of vertical pattern end (number of video lines, 1 grid max.) HO1 Gridline HG1 Gridline HG2 Gridline VG1 Gridline VG2 HO2 Autoalignment Pattern |
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