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.

Table 2-8. Graphics Interface Pinout
Pin NumberNameDescriptionPort/Pin
1GNDGround-
2GNDGround-
3MCLRHost Clear, Controlled by the debuggers. Allows for a complete system reboot.TARGET_RESETn
4IRQ1 (LCD Touch)Interrupt request line for cap touch devicePF1
55.0V VCC5.0V-
6IRQ2 (Q Touch)Interrupt request line for Q touch devices-
7LCDENLCD Data EnablePC5
8IRQ3 (Display Controllers)Interrupt request line for external display controllers-
9LCDHSYNC/NCS3LCD Horizontal SyncPC27
10IRQ4 (Resistive touch)Interrupt request line for resistive touch controllers-
11LCDVSYNC/nWELEC Vertical Sync or Write enable (active-low)PG4
12-19non-pop--
205.0V VCC+5.0V-
21LCDPCK/nRDLCD pixel Clock or Read Enable (active-low)PC6
22I2C SDAData line for I2C interface. Always implemented, bus type.PB09
23LCD D0LCD Data bit 0PA13
24I2C SCLClock line for I2C interface. Always implemented, bus type.PB10
25LCD D1LCD Data bit 1PA14
26SPI SCKClock for serial peripheral interface. Always implemented, bus type.PC16
27LCD D2LCD Data bit 2PA15
28SPI MOSIHost Out Client In (MOSI) line of Serial Peripheral Interface.PC15
29LCD D3LCD Data bit 3PA16
30SPI MISOHost In Client Out (MISO) line of Serial Peripheral Interface.PC17
31LCD D4LCD Data bit 4PA17
32SPI SSSPI Client SelectPD15
33LCD D5LCD Data bit 5PA04
34UART RXReceiver line of target device UART (Not Implemented on this design)-
35LCD D6LCD Data bit 6PA05
36UART TXTransmitter line of target device UART. (Not Implemented on this design)-
37LCD D7LCD Data bit 7PA06
38UART RTSUART Ready To Send (Not Implemented on this design)-
39LCD D8LCD Data bit 8PA07
40UART CTSUART Clear To Send (Not Implemented on this design)-
41LCD D9LCD Data bit 9PA08
42LCD PWMLCD PWM back light controlPA20
43LCD D10LCD Data bit 10PB11
44PWM2Pulse-Width Modulation,PA23
45LCD D11LCD Data bit 11PB12
46GPIO1General purpose I/O-
47LCD D12LCD Data bit 12PB05
48GPIO2General purpose I/O-
49LCD D13LCD Data bit 13PB13
50GPIO3General purpose I/O-
51LCD D14LCD Data bit 14PB06
52STBY/RST/GPIO4Standby/Reset or general purpose I/O. For resetting devices attached to the GFX connector.PC20
53LCD D15LCD Data bit 15PB14
54STBY/RST/GPIO5Standby2/Reset2 or general purpose I/O (Not Implemented on this design)-
55LCD D16LCD Data bit 16 (Not Implemented on this design)-
56ID pinCommunication line to the ID chip on an extension board-
57LCD D17LCD Data bit 17 (Not Implemented on this design)-
58ADC 0Analog-to-Digital Converter to MCU-
59LCD D18LCD Data bit 18 (Not Implemented on this design)-
60ADC1Analog-to-Digital Converter to MCU-
61LCD D19LCD Data bit 19 (Not Implemented on this design)-
62ADC2Analog-to-Digital Converter to MCU-
63LCD D20LCD Data bit 20 (Not Implemented on this design)-
64ADC3Analog-to-Digital Converter to MCU-
65LCD D21LCD Data bit 21 (Not Implemented on this design)-
66ADC4Analog-to-Digital Converter to MCU-
67LCD D22LCD Data bit 22 (Not Implemented on this design)-
68ADC5Analog-to-Digital Converter to MCU-
69LCD D23LCD Data bit 23 (Not Implemented on this design)-
70ADC6Analog-to-Digital Converter to MCU-
713.3V VCC+3.3V VCC-
72ADC7Analog-to-Digital Converter to MCU-
73GNDGround-
743.3V VCC+3.3V VCC-
75GNDGround-
M1GND TABMounting Tab-
M2GND TABMounting Tab-