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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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4524 датащи(PDF) 59 Page - Renesas Technology Corp |
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4524 датащи(HTML) 59 Page - Renesas Technology Corp |
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59 / 161 page  Rev.2.00 Jul 27, 2004 page 59 of 159 REJ03B0091-0200Z 4524 Group (3) LCD RAM RAM contains areas corresponding to the liquid crystal display. When “1” is written to this LCD RAM, the display pixel correspond- ing to the bit is automatically displayed. (4) LCD drive waveform When “1” is written to a bit in the LCD RAM data, the voltage differ- ence between common pin and segment pin which correspond to the bit automatically becomes lVLC3l and the display pixel at the cross section turns on. When returning from reset, and in the RAM back-up mode, a dis- play pixel turns off because every segment output pin and common output pin becomes VLC3 level. Fig. 44 LCD RAM map Table 18 LCD control registers Z X Y Bits 8 9 10 11 12 13 14 15 COM 1 14 3 2103 2 103 21 0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 COM3 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 COM2 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 COM1 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 COM0 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 COM3 COM2 COM1 COM0 COM3 COM2 COM1 COM0 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG0 SEG0 SEG0 SEG0 SEG8 SEG17 SEG18 SEG19 SEG16 SEG8 SEG8 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG17 SEG18 SEG19 SEG16 SEG17 SEG18 SEG19 SEG16 SEG17 SEG18 SEG19 SEG16 12 13 Note: The area marked “ ” is not the LCD display RAM. Internal dividing resistor for LCD power supply selection bit (Note 2) LCD control bit LCD control register L1 L13 L12 L11 L10 at reset : 00002 at power down : state retained 0 1 0 1 L11 0 0 1 1 L10 0 1 0 1 Duty 1/2 1/3 1/4 Bias 1/2 1/3 1/3 LCD control register L2 at reset : 11112 at power down : state retained W TL2A 0 1 0 1 0 1 0 1 SEG0 VLC3 SEG1 VLC2 SEG2 VLC1 Internal dividing resistor valid Internal dividing resistor invalid L23 L22 L21 L20 VLC3/SEG0 pin function switch bit (Note 3) VLC2/SEG1 pin function switch bit (Note 4) VLC1/SEG2 pin function switch bit (Note 4) Internal dividing resistor for LCD power supply control bit 2r ✕ 3, 2r ✕ 2 r ✕ 3, r ✕ 2 Off On Not available Notes 1: “R” represents read enabled, and “W” represents write enabled. 2: “r (resistor) multiplied by 3” is used at 1/3 bias, and “r multiplied by 2” is used at 1/2 bias. 3: VLC3 is connected to VDD internally when SEG0 pin is selected. 4: Use internal dividing resistor when SEG1 and SEG2 pins are selected. R/W TAL1/TL1A LCD duty and bias selection bits |
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