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ST7565R Datasheet(PDF) 23 Page - Sitronix Technology Co., Ltd. |
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ST7565R Datasheet(HTML) 23 Page - Sitronix Technology Co., Ltd. |
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23 / 72 page ![]() ST7565R Ver 1.7c 23/72 2009/09/14 D De es sc crriip pttiio on n O Off F Fu un nc cttiio on ns s T Th he e M MP PU U IIn ntte errffa ac ce e Selecting the Interface Type With the ST7565R chips, data transfers are done through an 8-bit parallel data bus (D7 to D0) or through a 4-line SPI data input (SI). Through selecting the P/ S terminal polarity to the “H” or “L” it is possible to select either parallel data input or 4-line SPI data input as shown in Table 1. Table 1 P/S /CS1 CS2 A0 /RD /WR C86 D7 D6 D5~D0 H: Parallel Input /CS1 CS2 A0 /RD /WR C86 D7 D6 D5~D0 L: 4-line SPI Input /CS1 CS2 A0 — — — SI SCL (HZ) “—” indicates fixed to “H” The Parallel Interface When the parallel interface has been selected (P/S =“H”), then it is possible to connect directly to either an 8080-system MPU or a 6800 Series MPU (shown in Table 2) by selecting the C86 terminal to either “H” or to “L”. Table 2 C86 (P/S=H) /CS1 CS2 A0 E(/RD) R/W(/WR) D7~D0 H: 6800 Series /CS1 CS2 A0 E R/W D7~D0 L: 8080 Series /CS1 CS2 A0 /RD /WR D7~D0 Moreover, data bus signals are recognized by a combination of A0, /RD (E), /WR (R/W) signals, as shown in Table 3. Table 3 Shared 6800 Series 8080 Series A0 R/W /RD /WR Function 1 1 0 1 Reads the display data 1 0 1 0 Writes the display data 0 1 0 1 Status read 0 0 1 0 Write control data (command) |
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