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ST7713 数据表(PDF) 27 Page - Sitronix Technology Co., Ltd. |
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ST7713 数据表(HTML) 27 Page - Sitronix Technology Co., Ltd. |
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27 / 159 page ![]() ST7713 Ver 1.6 2008-05 27 9.2.1 Write cycle sequence The write cycle means that the host writes information (command or/and data) to the display via the interface. Each write cycle (WRX high-low-high sequence) consists of 3 control signals (D/CX, RDX, WRX) and data signals (D[17:0]). D/CX bit is a control signal, which tells if the data is a command or a data. The data signals are the command if the control signal is low (=’0’) and vice versa it is data (=’1’). Fig. 9.2.1 8080-series WRX protocol Note: WRX is an unsynchronized signal (It can be stopped). Fig. 9.2.2 8080-series parallel bus protocol, write to register or display RAM |
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