1.8 Graphics Connectors or GFX Card Interface
The SAM E54 Curiosity Ultra development kit is designed to have a modular graphics interface. This interface enables the use of several different graphics cards, which allows for expandability and different use cases. A 24-bit pass though card is included with the kit, this board passes parallel data through, and can be configured to an 8-bit 8080 MCU mode. This card also provides access to the ADC for resistive touch screen or self-drive PTC touch screens. Refer to the following table for pin description.
| Pin Number | Name | Description |
|---|---|---|
| 1 | GND | Ground |
| 2 | GND | Ground |
| 3 | MCLR | Host Clear Reset controlled by the debuggers. Allows for a complete system reboot. |
| 4 | IRQ1 (LCD Touch) | Interrupt request line for cap touch device |
| 5 | 5.0V VCC | 5.0V |
| 6 | IRQ2 (Q Touch) | Interrupt request line for Q touch devices |
| 7 | LCDEN | LCD Data Enable |
| 8 | IRQ3 (Display Controllers) | Interrupt request line for external display controllers |
| 9 | LCDHSYNC/NCS3 | LCD Horizontal Sync or GPIO |
| 10 | IRQ4 (Resistive touch) | Interrupt request line for resistive touch controllers |
| 11 | LCDVSYNC/nWE | LCD Vertical Sync, CS, or GPIO |
| 12 | 5.0v VCC | +5.0v |
| 13 | LCDPCK/nRD | LCD pixel clock, Write Enable or GPIO |
| 14 | I2C SDA | Data line for I2C interface. Always implemented, bus type. |
| 15 | LCD D0 | LCD Data bit 0 |
| 16 | I2C SCL | Clock line for I2C interface. Always implemented, bus type. |
| 17 | LCD D1 | LCD Data bit 1 |
| 18 | SPI SCK | Clock for serial peripheral interface. Always implemented, bus type. |
| 19 | LCD D2 | LCD Data bit 2 |
| 20 | SPI MOSI | Host Out Client In line of serial peripheral interface. |
| 21 | LCD D3 | LCD Data bit 3 |
| 22 | SPI MISO | Host In Client Out line of serial peripheral interface. |
| 23 | LCD D4 | LCD Data bit 4 |
| 24 | SPI SS | SPI Client Select |
| 25 | LCD D5 | LCD Data bit 5 |
| 26 | UART RX | Receiver line of target device UART |
| 27 | LCD D6 | LCD Data bit 6 |
| 28 | UART TX | Transmitter line of target device UART (from MCU to GFX card). |
| 29 | LCD D7 | LCD Data bit 7 |
| 30 | UART RTS | UART Ready-To-Send (from MCU to GFX card) |
| 31 | LCD D8 | No Connect |
| 32 | UART CTS | UART Clear-To-Send (from MCU to GFX card) |
| 33 | LCD D9 | No Connect |
| 34 | LCD PWM | LCD PWM back light control |
| 35 | LCD D10 | No Connect |
| 36 | PWM2 | Pulse-Width Modulation (PWM) |
| 37 | LCD D11 | No Connect |
| 38 | GPIO1 | General purpose I/O |
| 39 | LCD D12 | No Connect |
| 40 | GPIO2 | General purpose I/O |
| 41 | LCD D13 | No Connect |
| 42 | GPIO3 | General purpose I/O |
| 43 | LCD D14 | No Connect |
| 44 | STBY/RST/GPIO4 | Standby/Reset or general purpose I/O. For resetting devices attached to the GFX connector. |
| 45 | LCD D15 | No Connect |
| 46 | STBY/RST/GPIO5 | Standby2/Reset2 or general purpose I/O |
| 47 | LCD D16 | No Connect |
| 48 | ID pin | Communication line to the ID chip on an extension board. |
| 49 | LCD D17 | No Connect |
| 50 | ADC 0 | Analog-to-Digital Converter to MCU |
| 51 | LCD D18 | No Connect |
| 52 | ADC1 | Analog-to-Digital Converter to MCU |
| 53 | LCD D19 | No Connect |
| 54 | ADC2 | Analog-to-Digital Converter to MCU |
| 55 | LCD D20 | No Connect |
| 56 | ADC3 | Analog-to-Digital Converter to MCU |
| 57 | LCD D21 | No Connect |
| 58 | ADC4 | Analog-to-Digital Converter to MCU |
| 59 | LCD D22 | No Connect |
| 60 | ADC5 | Analog-to-Digital Converter to MCU |
| 61 | LCD D23 | No Connect |
| 62 | ADC6 | Analog-to-Digital Converter to MCU |
| 63 | 3.3V VCC | +3.3V VCC |
| 64 | ADC7 | Analog-to-Digital Converter to MCU |
| 65 | GND | Ground |
| 66 | 3.3V VCC | +3.3V VCC |
| 67 | GND | Ground |
| 68 | GND TAB | Mounting Tab |
| 69 | GND TAB | Mounting Tab |