PIC16F913 datasheet(103/272 Pages) MICROCHIP

103 / 272 page

Preliminary

DS41250E-page 101

PIC16F917/916/914/913

9.0

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 PIC16F914/917 devices (PIC16F914/917),

the module drives the panels of up to four commons and

up to 24 segments and in the PIC16F913/916 devices

(PIC16F913/916), the module drives the panels of up to

four commons and up to 16 segments. It 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 commons:

- Static

- 1/2 multiplex

- 1/3 multiplex

- 1/4 multiplex

• Up to 24 (in PIC16F914/917 devices)/16 (in

PIC16F913/916 devices) segments

• Static, 1/2 or 1/3 LCD Bias

The module has 32 registers:

• LCD Control Register (LCDCON)

• LCD Phase Register (LCDPS)

• Three LCD Segment Enable Registers

(LCDSE<2:0>)

• 24 LCD Data Registers (LCDDATA<11:0>)

The LCDCON register, shown in Register 9-1, controls

the operation of the LCD driver module. The LCDPS

clock source prescaler and the type of waveform;

Type-A or Type-B. The LCDSE<2:0> registers configure

the functions of the port pins:

• LCDSE0

SE<7:0>

• LCDSE1

SE<15:8>

• LCDSE2

SE<23:16>

As an example, LCDSEn is detailed in Register 9-3.

Once the module is initialized for the LCD panel, the

individual bits of the LCDDATA<11:0> registers are

cleared/set

represent

clear/dark

pixel,

respectively:

• LCDDATA0

SEG7COM0:SEG0COM0

• LCDDATA1

SEG15COM0:SEG8COM0

• LCDDATA2

SEG23COM0:SEG16COM0

• LCDDATA3

SEG7COM1:SEG0COM1

• LCDDATA4

SEG15COM1:SEG8COM1

• LCDDATA5

SEG23COM1:SEG16COM1

• LCDDATA6

SEG7COM2:SEG0COM2

• LCDDATA7

SEG15COM2:SEG8COM2

• LCDDATA8

SEG23COM2:SEG16COM2

• LCDDATA9

SEG7COM3:SEG0COM3

• LCDDATA10 SEG15COM3:SEG8COM3

• LCDDATA11 SEG23COM3:SEG16COM3

As an example, LCDDATAx is detailed in Register 9-4.

Once

the

module

configured,

the

LCDEN

(LCDCON<7>) bit is used to enable or disable the LCD

module. The LCD panel can also operate during Sleep

by clearing the SLPEN (LCDCON<6>) bit.

Note:

The LCDSE2 register is not implemented

in PIC16F913/916 devices.

Note:

Writing

into

the

registers

LCDDATA2,

LCDDATA5, LCDDATA8 and LCDDATA11

in PIC16F913/916 devices will not affect the

status of any pixel and these registers can

be used as General Purpose Registers.

PIC16F913 Datasheet(PDF) 103 Page - Microchip Technology

PIC16F913 Datasheet(HTML) 103 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL