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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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INTEDG датащи(PDF) 335 Page - Microchip Technology |
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INTEDG датащи(HTML) 335 Page - Microchip Technology |
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335 / 478 page  2010-2012 Microchip Technology Inc. DS41414D-page 335 PIC16(L)F1946/47 27.0 LIQUID CRYSTAL DISPLAY (LCD) DRIVER MODULE The Liquid Crystal Display (LCD) driver module generates the timing control to drive a static or multiplexed LCD panel. In the PIC16(L)F1946/47 device, the module drives the panels of up to four commons and up to 46 segments. The LCD module also provides control of the LCD pixel data. The LCD driver module supports: • Direct driving of LCD panel • Three LCD clock sources with selectable prescaler • Up to four common pins: - Static (1 common) - 1/2 multiplex (2 commons) - 1/3 multiplex (3 commons) - 1/4 multiplex (4 commons) • Segment pins up to: - 64 (PIC16(L)F1946/47) • Static, 1/2 or 1/3 LCD Bias 27.1 LCD Registers The module contains the following registers: • LCD Control register (LCDCON) • LCD Phase register (LCDPS) • LCD Reference Ladder register (LCDRL) • LCD Contrast Control register (LCDCST) • LCD Reference Voltage Control register (LCDREF) • Up to 6 LCD Segment Enable registers (LCDSEn) • Up to 24 LCD data registers (LCDDATAn) FIGURE 27-1: LCD DRIVER MODULE BLOCK DIAGRAM Data Bus SEG<23:0> To I/O Pads(1) LCDDATAx Registers Note 1: These are not directly connected to the I/O pads, but may be tri-stated, depending on the configuration of the LCD module. COM<3:0> Clock Source Timing Control Select and Prescaler LFINTOSC FOSC/256 T1OSC To I/O Pads(1) LCDCON LCDPS LCDSEn MUX |
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