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PIC16F916E/P301 Datasheet(PDF) 126 Page - Microchip Technology |
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PIC16F916E/P301 Datasheet(HTML) 126 Page - Microchip Technology |
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126 / 272 page  PIC16F917/916/914/913 DS41250E-page 124 Preliminary © 2005 Microchip Technology Inc. 9.10 Configuring the LCD Module The following is the sequence of steps to configure the LCD module. 1. Select the frame clock prescale using bits LP<3:0> (LCDPS<3:0>). 2. Configure the appropriate pins to function as segment drivers using the LCDSEn registers. 3. Configure the LCD module for the following using the LCDCON register: -Multiplex and Bias mode, bits LMUX<1:0> -Timing source, bits CS<1:0> -Sleep mode, bit SLPEN 4. Write initial values to pixel data registers, LCDDATA0 through LCDDATA11. 5. Clear LCD Interrupt Flag, LCDIF (PIR2<4>) and if desired, enable the interrupt by setting bit LCDIE (PIE2<4>). 6. Enable bias voltage pins (VLCD<3:1>) by setting VLCDEN (LCDCON<4>). 7. Enable the LCD module by setting bit LCDEN (LCDCON<7>). TABLE 9-5: REGISTERS ASSOCIATED WITH LCD OPERATION Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on POR, BOR Value on all other Resets 10h T1CON T1GINV T1GE T1CKPS1 T1CKPS0 T1OSCEN T1SYNC TMR1CS TMR1ON 0000 0000 uuuu uuuu 0Bh/8Bh/ 10Bh/18Bh INTCON GIE PEIE T0IE INTE RBIE T0IF INTF RBIF 0000 000x 0000 000x 0Dh PIR2 OSFIF C2IF C1IF LCDIF — LVDIF — CCP2IF 0000 -0-0 0000 -0-0 8Dh PIE2 OSFIE C2IE C1IE LCDIE — LVDIE — CCP2IE 0000 -0-0 0000 -0-0 107h LCDCON LCDEN SLPEN WERR VLCDEN CS1 CS0 LMUX1 LMUX0 0001 0011 0001 0011 108h LCDPS WFT BIASMD LCDA WA LP3 LP2 LP1 LP0 0000 0000 0000 0000 110h LCDDATA0 SEG7 COM0 SEG6 COM0 SEG5 COM0 SEG4 COM0 SEG3 COM0 SEG2 COM0 SEG1 COM0 SEG0 COM0 xxxx xxxx uuuu uuuu 111h LCDDATA1 SEG15 COM0 SEG14 COM0 SEG13 COM0 SEG12 COM0 SEG11 COM0 SEG10 COM0 SEG9 COM0 SEG8 COM0 xxxx xxxx uuuu uuuu 112h LCDDATA2(2) SEG23 COM0 SEG22 COM0 SEG21 COM0 SEG20 COM0 SEG19 COM0 SEG18 COM0 SEG17 COM0 SEG16 COM0 xxxx xxxx uuuu uuuu 113h LCDDATA3 SEG7 COM1 SEG6 COM1 SEG5 COM1 SEG4 COM1 SEG3 COM1 SEG2 COM1 SEG1 COM1 SEG0 COM1 xxxx xxxx uuuu uuuu 114h LCDDATA4 SEG15 COM1 SEG14 COM1 SEG13 COM1 SEG12 COM1 SEG11 COM1 SEG10 COM1 SEG9 COM1 SEG8 COM1 xxxx xxxx uuuu uuuu 115h LCDDATA5(2) SEG23 COM1 SEG22 COM1 SEG21 COM1 SEG20 COM1 SEG19 COM1 SEG18 COM1 SEG17 COM1 SEG16 COM1 xxxx xxxx uuuu uuuu 116h LCDDATA6 SEG7 COM2 SEG6 COM2 SEG5 COM2 SEG4 COM2 SEG3 COM2 SEG2 COM2 SEG1 COM2 SEG0 COM2 xxxx xxxx uuuu uuuu 117h LCDDATA7 SEG15 COM2 SEG14 COM2 SEG13 COM2 SEG12 COM2 SEG11 COM2 SEG10 COM2 SEG9 COM2 SEG8 COM2 xxxx xxxx uuuu uuuu 118h LCDDATA8(2) SEG23 COM2 SEG22 COM2 SEG21 COM2 SEG20 COM2 SEG19 COM2 SEG18 COM2 SEG17 COM2 SEG16 COM2 xxxx xxxx uuuu uuuu 119h LCDDATA9 SEG7 COM3 SEG6 COM3 SEG5 COM3 SEG4 COM3 SEG3 COM3 SEG2 COM3 SEG1 COM3 SEG0 COM3 xxxx xxxx uuuu uuuu 11Ah LCDDATA10 SEG15 COM3 SEG14 COM3 SEG13 COM3 SEG12 COM3 SEG11 COM3 SEG10 COM3 SEG9 COM3 SEG8 COM3 xxxx xxxx uuuu uuuu 11Bh LCDDATA11(2) SEG23 COM3 SEG22 COM3 SEG21 COM3 SEG20 COM3 SEG19 COM3 SEG18 COM3 SEG17 COM3 SEG16 COM3 xxxx xxxx uuuu uuuu 11Ch LCDSE0(3) SE7 SE6 SE5 SE4 SE3 SE2 SE1 SE0 0000 0000 uuuu uuuu 11Dh LCDSE1(3) SE15 SE14 SE13 SE12 SE11 SE10 SE9 SE8 0000 0000 uuuu uuuu 11Eh LCDSE2(2,3) SE23 SE22 SE21 SE20 SE19 SE18 SE17 SE16 0000 0000 uuuu uuuu Legend: x = unknown, u = unchanged, - = unimplemented, read as ‘0’. Shaded cells are not used by the LCD module. Note 1: These pins may be configured as port pins, depending on the oscillator mode selected. 2: PIC16F914/917 only. 3: This register is only initialized by a POR or BOR reset and is unchanged by other Resets. |
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