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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST92196A датащи(PDF) 149 Page - STMicroelectronics |
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ST92196A датащи(HTML) 149 Page - STMicroelectronics |
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149 / 268 page  149/268 - ON SCREEN DISPLAY CONTROLLER (OSD) OSD CONTROLLER (Cont’d) SHAPE ATTRIBUTE - 18x26 MATRIX Address in segment 22h: 2p+5+3z. See Figure 59. Bit 7 = CODX Character Code Extension This bit is used as the character address exten- sion. Then it is possible to address any of the 18x26 characters of the font ROM. Let’s assume that the character code is ChC[7:0] (1 byte), then the character addressed with this structure is: CODX.ChC[7:0] Bit 6 = DBLY Double height control bit This bit controls the double height feature applied on the current row height. 0: The character is displayed with the current row height, as defined by SY (Section 8.5.8.3). 1: The current character is displayed with a double height than defined by SY. The display of the lower or upper half of the character is controlled by the UH row attribute bit (refer to Section 8.5.8.3). Bit 5 = DBLX Double width control bit This bit controls the double width feature applied to the current row character width. 0: The character is displayed with the current width as defined by SX (Section 8.5.8.3). 1: The character is displayed in double width, ac- cording to the following rules: – It covers the next character location – The next character location is read and de- coded but not processed, – If the character is the last one in the row, it will be truncated to its left half. Bits 4:0 = Please refer to the bit descriptions in the 9x13 matrix shape attributes. 70 CODX DBLY DBLX FXP BXP FOC SHA FRC |
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