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PCF8813 датащи(PDF) 56 Page - NXP Semiconductors |
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PCF8813 датащи(HTML) 56 Page - NXP Semiconductors |
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56 / 72 page ![]() 2004 Mar 05 56 Philips Semiconductors Product specification (67 + 1) × 102 pixels matrix LCD driver PCF8813 17.9 Programming examples Table 25 Programming example for PCF8813 with serial interface (3-line serial, 3-line SPI or 4-line SPI) STEP SERIAL BUS BYTE DISPLAY OPERATION D/C DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 1 start SCE is going low 2 0 0 0 1 0 0 0 0 1 function set: PD = 0, V = 0; select extended instruction set (H = 1) 3 0 0 0 0 1 0 0 0 1 set PRS to higher programming range (PRS = 1) 4 0 1 0 0 1 0 0 0 0 set VPR: VPR*= (a + 132* × b) = 8.596 V (required voltage is dependent on liquid crystal operating environment) 5 0 0 0 1 0 0 0 0 0 function set: PD = 0, V = 0; select normal instruction set (H=0) 6 0 0 0 0 0 1 1 0 0 display control: set normal mode (D = 1 and E = 0) 7 0 0 0 0 1 0 1 1 0 set data order: DO = 0 000000000 8 − 1 1 1 0 0 0 0 0 option available in 3-line SPI for setting display data length command (7 shown) − 00000111 9 1 0 0 0 1 1 1 1 1 data write: Y and X are initialized to 0 by default, so they are not set here 10 1 0 0 0 0 0 1 0 1 data write 11 1 0 0 0 0 0 1 1 1 data write 12 1 0 0 0 0 0 0 0 0 data write 13 1 0 0 0 1 1 1 1 1 data write MGS405 MGS406 MGS407 MGS407 MGS409 |
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