This 2.2 inch 320*240 Touch LCD is compatible with OpenM128.
LCD Controller | BD663474 (supports SPI) |
Touch Screen Controller | XPT2046 |
LCD Type | TFT |
LCD Interface | SPI serial |
Touch Screen Interface | SPI |
Backlight | LED |
Colors | 262,144 |
Resolution | 320*240 DOTS |
PIN NO. | SYMBOL | DESCRIPTION | FUNCTION |
1 | GND | Ground | Ground |
2 |
3 | 3.3V | 3.3V power supply | Connects to 3.3V |
4 |
5 | PWM | Backlight brightness adjustment | Control the backlight brightness via PWM |
6 |
8 | NC | NC | NC |
10 | NC |
12 | NC |
14 | NC |
16 | NC |
18 | NC |
20 | NC |
22 | NC |
24 | NC |
26 | NC |
28 | NC |
30 | NC |
7 | NC |
9 | NC |
11 | NC |
13 | NC |
15 | NC |
17 | NC |
19 | T_IRQ | Touch screen interrupt | Low level while the touch screen detects pressing |
21 | T_BUSY | Touch screen chip busy | |
23 | T_CS | Touch screen chip select | Low active |
25 | T_DCLK | Touch screen SPI clock | Connects to SPI SCK |
27 | T_DIN | Touch screen data input | Connects to SPI MOSI |
29 | T_DOUT | Touch screen data output | Connects to SPI MISO |
31 | RESET | Reset the controller chip | Low active |
32 |
33 | SCI | Screen SPI data input (in Serial Mode) | Connects to SPI MOSI |
35 | SCL | Screen SPI clock (in Serial Mode) | Connects to SPI SCK |
34 | NC | NC | NC |
36 | NC | NC | NC |
37 | CS | LCD chip select (in Serial Mode) | Low active |
38 |
39 | RS | Instruction/Data register selection | RS = 1 : Data Register
RS = 0 : Instruction Register
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