2.7 Graphics Connectors or GFX Card Interface
The PIC32CK SG01/GC01 Curiosity Ultra development board is designed with a modular graphics interface. This interface enables using several graphics cards, which allow for expandability and different use cases. A 565 adapter card can be purchased separately, which takes 16-bit parallel LCD data and converts it to 24-bit data. This card also provides access to ADC for resistive touch-screens, therefore an external controller is not needed. Refer to the following table for pin descriptions.
| Pin Number | Name | Description | Port/Pin |
|---|---|---|---|
| 1 | GND | Ground | - |
| 2 | GND | Ground | - |
| 3 | MCLR | Host Clear, Controlled by the debuggers. Allows for a complete system reboot. | TARGET_RESETn |
| 4 | IRQ1 (LCD Touch) | Interrupt request line for cap touch device | PF1 |
| 5 | 5.0V VCC | 5.0V | - |
| 6 | IRQ2 (Q Touch) | Interrupt request line for Q touch devices | - |
| 7 | LCDEN | LCD Data Enable | PC5 |
| 8 | IRQ3 (Display Controllers) | Interrupt request line for external display controllers | - |
| 9 | LCDHSYNC/NCS3 | LCD Horizontal Sync | PC27 |
| 10 | IRQ4 (Resistive touch) | Interrupt request line for resistive touch controllers | - |
| 11 | LCDVSYNC/nWE | LEC Vertical Sync or Write enable (active-low) | PG4 |
| 12-19 | non-pop | - | - |
| 20 | 5.0V VCC | +5.0V | - |
| 21 | LCDPCK/nRD | LCD pixel Clock or Read Enable (active-low) | PC6 |
| 22 | I2C SDA | Data line for I2C interface. Always implemented, bus type. | PB09 |
| 23 | LCD D0 | LCD Data bit 0 | PA13 |
| 24 | I2C SCL | Clock line for I2C interface. Always implemented, bus type. | PB10 |
| 25 | LCD D1 | LCD Data bit 1 | PA14 |
| 26 | SPI SCK | Clock for serial peripheral interface. Always implemented, bus type. | PC16 |
| 27 | LCD D2 | LCD Data bit 2 | PA15 |
| 28 | SPI MOSI | Host Out Client In (MOSI) line of Serial Peripheral Interface. | PC15 |
| 29 | LCD D3 | LCD Data bit 3 | PA16 |
| 30 | SPI MISO | Host In Client Out (MISO) line of Serial Peripheral Interface. | PC17 |
| 31 | LCD D4 | LCD Data bit 4 | PA17 |
| 32 | SPI SS | SPI Client Select | PD15 |
| 33 | LCD D5 | LCD Data bit 5 | PA04 |
| 34 | UART RX | Receiver line of target device UART (Not Implemented on this design) | - |
| 35 | LCD D6 | LCD Data bit 6 | PA05 |
| 36 | UART TX | Transmitter line of target device UART. (Not Implemented on this design) | - |
| 37 | LCD D7 | LCD Data bit 7 | PA06 |
| 38 | UART RTS | UART Ready To Send (Not Implemented on this design) | - |
| 39 | LCD D8 | LCD Data bit 8 | PA07 |
| 40 | UART CTS | UART Clear To Send (Not Implemented on this design) | - |
| 41 | LCD D9 | LCD Data bit 9 | PA08 |
| 42 | LCD PWM | LCD PWM back light control | PA20 |
| 43 | LCD D10 | LCD Data bit 10 | PB11 |
| 44 | PWM2 | Pulse-Width Modulation, | PA23 |
| 45 | LCD D11 | LCD Data bit 11 | PB12 |
| 46 | GPIO1 | General purpose I/O | - |
| 47 | LCD D12 | LCD Data bit 12 | PB05 |
| 48 | GPIO2 | General purpose I/O | - |
| 49 | LCD D13 | LCD Data bit 13 | PB13 |
| 50 | GPIO3 | General purpose I/O | - |
| 51 | LCD D14 | LCD Data bit 14 | PB06 |
| 52 | STBY/RST/GPIO4 | Standby/Reset or general purpose I/O. For resetting devices attached to the GFX connector. | PC20 |
| 53 | LCD D15 | LCD Data bit 15 | PB14 |
| 54 | STBY/RST/GPIO5 | Standby2/Reset2 or general purpose I/O (Not Implemented on this design) | - |
| 55 | LCD D16 | LCD Data bit 16 (Not Implemented on this design) | - |
| 56 | ID pin | Communication line to the ID chip on an extension board | - |
| 57 | LCD D17 | LCD Data bit 17 (Not Implemented on this design) | - |
| 58 | ADC 0 | Analog-to-Digital Converter to MCU | - |
| 59 | LCD D18 | LCD Data bit 18 (Not Implemented on this design) | - |
| 60 | ADC1 | Analog-to-Digital Converter to MCU | - |
| 61 | LCD D19 | LCD Data bit 19 (Not Implemented on this design) | - |
| 62 | ADC2 | Analog-to-Digital Converter to MCU | - |
| 63 | LCD D20 | LCD Data bit 20 (Not Implemented on this design) | - |
| 64 | ADC3 | Analog-to-Digital Converter to MCU | - |
| 65 | LCD D21 | LCD Data bit 21 (Not Implemented on this design) | - |
| 66 | ADC4 | Analog-to-Digital Converter to MCU | - |
| 67 | LCD D22 | LCD Data bit 22 (Not Implemented on this design) | - |
| 68 | ADC5 | Analog-to-Digital Converter to MCU | - |
| 69 | LCD D23 | LCD Data bit 23 (Not Implemented on this design) | - |
| 70 | ADC6 | Analog-to-Digital Converter to MCU | - |
| 71 | 3.3V VCC | +3.3V VCC | - |
| 72 | ADC7 | Analog-to-Digital Converter to MCU | - |
| 73 | GND | Ground | - |
| 74 | 3.3V VCC | +3.3V VCC | - |
| 75 | GND | Ground | - |
| M1 | GND TAB | Mounting Tab | - |
| M2 | GND TAB | Mounting Tab | - |