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ST7789V2 bảng dữ liệu(PDF) 54 Page - Sitronix Technology Co., Ltd. |
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ST7789V2 bảng dữ liệu(HTML) 54 Page - Sitronix Technology Co., Ltd. |
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54 / 319 page  ST7789V2 Version 1.0 Page 54 of 319 2016/11 Sitronix Confidential The information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Sitronix. 8.3 8080- series MCU Parallel Interface Ⅱ Ⅱ Ⅱ Ⅱ The MCU uses one of following interface: 11-lines with 8-data parallel interface, 12-lines with 9-data parallel interface, 19-lines with 16-data parallel interface, or 21-lines with 18-data parallel interface. The chip-select CSX(active low) enables and disables the parallel interface. RESX (active low) is an external reset signal. The R/WX is the Read/Write flag and D[17:0] is parallel data bus. The LCD driver reads the data at the rising edge of WRX signal. The D/CX is the data/command flag. When D/CX=’1’, D[17:0] bits is either display data or command parameter. When D/C=’0’, D[17:0] bits is command. The 8080- series bi Ⅱ -directional interface can be used for communication between the micro controller and LCD driver. Interface bus width can be selected with IM3, IM2, IM1 and IM0.The interface functions of 8080- series parallel interface Ⅱ are given in Table 12 The function of 8080- Ⅱ series parallel interface. IM3 IM2 IM1 IM0 Interface D/CX RDX WRX Function 1 0 0 0 16-bit Parallel 0 1 ↑ Write 8-bit command (D[8:1]) 1 1 ↑ Write 16-bit display data or 8-bit parameter (D[17:10], D[8:1]) 1 ↑ 1 Read 16-bit Display data (D[17:10], D[8:1]) 1 ↑ 1 Read 8-bit parameter or status (D[8:1]) 1 0 0 1 8-bit Parallel 0 1 ↑ Write 8-bit command (D[17:10]) 1 1 ↑ Write 8-bit display data or 8-bit parameter (D[17:10]) 1 ↑ 1 Read 8-bit Display data (D[17:10]) 1 ↑ 1 Read 8-bit parameter or status (D[17:10]) 1 0 1 0 18-bit Parallel 0 1 ↑ Write 8-bit command (D[8:1]) 1 1 ↑ Write 18-bit display data or 8-bit parameter (D[17:0], D[8:1]) 1 ↑ 1 Read 18-bit Display data (D[17:0]) 1 ↑ 1 Read 8-bit parameter or status (D[8:1]) 1 0 1 1 9-bit Parallel 0 1 ↑ Write 8-bit command (D[17:10]) 1 1 ↑ Write 9-bit display data or 8-bit parameter (D[17:9]) 1 ↑ 1 Read 9-bit Display data (D[17:9]) 1 ↑ 1 Read 8-bit parameter or status (D[17:10]) Table 12 The function of 8080- series parallel interface Ⅱ Ⅱ Ⅱ Ⅱ |
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