PCA2117DUGSSLASHDA datasheet(58/107 Pages) NXP

58 / 107 page

PCA2117

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Product data sheet

Rev. 4 — 8 April 2015

58 of 107

NXP Semiconductors

PCA2117

Automotive LCD driver for character displays

i2c_write(0x11);

// Select Memory Address 0: Point to first row in the CGRAM

i2c_write(0x80);

// Repeated Start condition

startI2C();

SendI2CAddress(0x76);

// MSB (Continuation bit CO) = 0, no more control bytes will follow, RS[1:0]= 01

// next bytes are RAM data bytes written in the CGRAM column 0

i2c_write(0x20);

// Here the data bytes to define the character

// Behind the write commands the 5x8 dot matrix is shown, the 1 represents a on pixel.

// The Euro currency character can be recognized by the 0/1 pattern (see Figure 37)

// 00110

i2c_write(0x06); // 00110

i2c_write(0x09); // 01001

i2c_write(0x08); // 01000

i2c_write(0x1E); // 11110

i2c_write(0x08); // 01000

i2c_write(0x09); // 01001

i2c_write(0x06); // 00110

i2c_stop();

// Until here the definition of the character and writing it into the CGRAM. Now it

// still has to be displayed. See below.

// PCA2117, setting of proper display modes

startI2C();

// PCA2117 slave address for write, SA0 is connected to VDD

SendI2CAddress(0x76);

// MSB (Continuation bit CO) = 1, more control bytes will follow, RS[1:0]= 10

// next byte is a command byte on register page "10"

i2c_write(0xC0);

// Set display configuration to right to left, column 80 to 1. Row data displ. top to

// bottom 1 to 16. P-bit='1' Q-bit = '1

i2c_write(0x06);

// MSB (Continuation bit CO) = 1, more control bytes will follow, RS[1:0]= 10

// next byte is a command byte on register page "10"

i2c_write(0xC0);

// Set to character mode, full display, icon blink disabled

i2c_write(0x08);

// MSB (Continuation bit CO) = 1, more control bytes will follow, RS[1:0]= 11

// next byte is a command byte on register page "11"

i2c_write(0xE0);

// Set voltage multiplier to 2 and enable chargepump

i2c_write(0x84);

// MSB (Continuation bit CO) = 1, more control bytes will follow, RS[1:0]= 11

// next byte is a command byte on register page "11"

i2c_write(0xE0);

// Set Vlcda MSB

i2c_write(0xA2);

// MSB (Continuation bit CO) = 1, more control bytes will follow, RS[1:0]= 11

// next byte is a command byte on register page "11"

PCA2117DUGS/DA Datasheet(PDF) 58 Page - NXP Semiconductors

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