SLAU781 August   2018

 

  1.   KDK350ADPTR-EVM
    1.     Trademarks
    2. 1 Board Overview
      1. 1.1 Using the KDK350ADPTR-EVM
    3. 2 KDK350ADPTR-EVM Pinouts and Features
      1. 2.1 LCD EVM Interface Header
      2. 2.2 LCD Backlight Control
      3. 2.3 LCD Interface Control
    4. 3 Software Development
      1. 3.1 Software Description
      2. 3.2 Source Code
      3. 3.3 Tool Options
    5. 4 REACH Compliance
    6. 5 Schematics

2.3 LCD Interface Control

The K350QVG-V2-F-04 LCD supports for multiple interface modes:

  • 8-, 9-, 16-, or 18-bit 8080 parallel interface
  • 6-, 9-, 16-, or 18-bit RGB interface with 3-wire SPI
  • 3-wire SPI

The mode is selected by the PS3, PS2, PS1, and PS0 pins on the LCD. Table 3 lists the selection for each mode. Switch bank S1 on the KDK350ADPTR-EVM controls the PS3, PS2, PS1, and PS0 pins (see Figure 3). The silkscreen adjacent to S1 shows the signal that each switch controls and the position to generate a 1 or a 0. Figure 3 shows the switch configuration to use 8080 16-bit parallel interface.

Table 3. LCD Interface Selection

PS3 PS2 PS1 PS0 Interface
0 0 1 0 16-bit 8080 parallel interface
0 0 1 1 8-bit 8080 parallel interface
0 1 0 0 9-bit RGB and 3-wire SPI
0 1 0 1 16-bit RGB and 3-wire SPI
0 1 1 0 18-bit RGB and 3-wire SPI
0 1 1 1 6-bit RGB and 3-wire SPI
1 0 1 0 18-bit 8080 parallel interface
1 0 1 1 9-bit 8080 parallel interface
1 1 1 0 3-wire SPI
switch-bank-s1-configured-to-use-8080-16-bit-interface.pngFigure 3. Switch Bank S1 Configured to Use 8080 16-Bit Interface