ILI9341 (2.4'' LCD Shield 8 bit parallel)
| Pin | Name | Description | Alt. function |
|---|---|---|---|
| LCD_RST | reset pin | ||
| LCD_CS | chip select | LCD_CS pin has to be LOW during the communication | TOUCH_XM - touch data X- |
| LCD_RS | register select | ILI9341 interpretes input byte as command (if LCD_RS=0) or as data/parameter (LCD_RS=1) | TOUCH_YP - touch data Y+ |
| LCD_WR | write | HIGH when not used. LCD_WR rising from LOW to HIGH tells to ILI9341 to read byte on data pins | |
| LCD_RD | read | HIGH when not used. To read a byte from ILI9341 after sending a read command (e.g. 09h - Read Display Status) set LCD_RD from HIGH to LOW, so ILI9341 outputs data until LCD_RD returns HIGH). After LCD_RD falls from HIGH to LOW ILI9341 outputs data until LCD_RD returns to HIGH | |
| LCD_D0 | data bit 0 | TOUCH_YM - touch data Y- | |
| LCD_D1 | data bit 1 | TOUCH_XP - touch data X+ | |
| LCD_D2 | data bit 2 | ||
| LCD_D3 | data bit 3 | ||
| LCD_D4 | data bit 4 | ||
| LCD_D5 | data bit 5 | ||
| LCD_D6 | data bit 6 | ||
| LCD_D7 | data bit 7 | ||
| SD_SS | sd card slave select | ||
| SD_DI | sd card serial data in | ||
| SD_DO | sd card serial data out | ||
| SD_SCK | sd card serial clock | ||
| GND | ground | ||
| 5V | 5V | ||
| 3V3 | 3.3V |