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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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STV2050A 데이터시트(PDF) 43 Page - STMicroelectronics |
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STV2050A 데이터시트(HTML) 43 Page - STMicroelectronics |
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43 / 83 page  43/83 STV2050A - BLANKING OF VIDEO SIGNALS grammed for VVB are greater than those of the VGD, unexpected effects will appear on the screen. Figure 25. Vertical Blanking 8.3 BLANKING FOR AUTO-ALIGNMENT PATTERN The blanking for the auto-alignment pattern and for the other video pattern are linked to the same timing which is defined by the HVB and VVB bits as described in the following sections. 8.4 FAST BLANKING The FBLK pin is used to provide a fast switching signal that selects the source of the video signal to be displayed on the screen. Features are controlled by the D7 register. HAE 0: Horizontal blanking off 1: Horizontal blanking on VAE 0: Vertical blanking off 1: Vertical blanking on STA 0: FBLK depends on the TVH, TVV and FAS bits (see below) 1: FBLK is forced to 1, if a pattern color is enabled by the COV bits. (Refer to Section 7.1.1 "Pattern Selection" on page 33) TVH Blanking of TV picture in horizontal direction 0: Blanking off 1: Blanking on 12 0 1 2 3 4 5 6 7 8 9 10 11 12 0 V-Gridlines VVB VVB V blank stop V blank start |
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