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ST7531 Datasheet(PDF) 39 Page - Sitronix Technology Co., Ltd. |
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ST7531 Datasheet(HTML) 39 Page - Sitronix Technology Co., Ltd. |
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39 / 85 page  ST7531 Ver 1.8 39/85 2006/9/18 (5) Common scan (COMSCN) - Parameter Byte: 1 (BBH) It is to specify the common output scan direction. This command is for the convenience of wiring on the LCD panel. A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0 Function Command 0 1 0 1 0 1 1 1 0 1 1 － Parameter Byte 1 (PB1) 1 1 0 * * * * * CD2 CD1 CD0 Common Scan direction When 1/160 is selected for the display duty, pins and common output are scanned in the order shown below. Common scan direction CD2 CD1 CD0 COM0 pin COM79 pin COM80 pin COM159 pin 0 0 0 0 0 1 0 1 0 0 1 1 0 79 0 79 79 0 79 0 80 159 159 80 80 159 159 80 Original graphic : CD[2-0] = [0,0,0] (0 79, 80 159) CD[2-0] = [0,0,1] (0 79, 159 80) CD[2-0] = [0,1,0] (79 0, 80 159) CD[2-0] = [0,1,1] (79 0, 159 80) Figure 8.1.1 Common scan direction configuration Com0 Com79 Com159 Com80 Com0 Com79 Com159 Com80 Com0 Com79 Com80 Com159 Com79 Com0 Com159 Com80 Com79 Com0 Com80 Com159 |
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