3.4.4 Liquid Crystal Display (LCD) Interface

The SAM9X60-Curiosity board provides a connector with 24 bits of data and control signals to the LCD interface.

Optional displays such as AC320005-5 (refer to the product web page) can be connected to the board.

In order to operate correctly with various LCD modules, two power supplies are available: 3.3V and 5 V_DC (default). The selection is made with 0R resistors.

J13 is a 1.27-mm pitch, 50-pin header. It gives access to the LCD signals.

Figure 3-17. LCD Connector

Table 3-12. LCD Connector J13 Signal Descriptions
Pin No	LCD pin	PIO	Signal	Function
1	ID	PD14	LCD_ID_PD14	ID LCD module
2	GND	–	GND	Ground
3	GND	–	GND	Ground
4	GND	–	GND	Ground
5	LCDDAT2	PC2	LCD_D2_PC2	Data line
6	LCDDAT3	PC3	LCD_D3_PC3	Data line
7	GND	–	GND	Ground
8	LCDDAT4	PC4	LCD_D4_PC4	Data line
9	LCDDAT5	PC5	LCD_D5_PC5	Data line
10	LCDDAT6	PC6	LCD_D6_PC6	Data line
11	LCDDAT7	PC7	LCD_D7_PC7	Data line
12	GND	–	GND	Ground
13	GND	–	GND	Ground
14	GND	–	GND	Ground
15	LCDDAT10	PC10	LCD_D10_PC10	Data line
16	LCDDAT11	PC11	LCD_D11_PC11	Data line
17	GND	–	GND	Ground
18	LCDDAT12	PC12	LCD_D12_PC12	Data line
19	LCDDAT13	PC13	LCD_D13_PC13	Data line
20	LCDDAT14	PC14	LCD_D14_PC14	Data line
21	LCDDAT15	PC15	LCD_D15_PC15	Data line
22	GND	–	GND	Ground
23	GND	–	GND	Ground
24	GND	–	GND	Ground
25	LCDDAT18	PC18	LCD_D18_PC18	Data line
26	LCDDAT19	PC19	LCD_D19_PC19	Data line
27	GND	–	GND	Ground
28	LCDDAT20	PC20	LCD_D20_PC20	Data line
29	LCDDAT21	PC21	LCD_D21_PC21	Data line
30	LCDDAT22	PC22	LCD_D22_PC22	Data line
31	LCDDAT23	PC23	LCD_D23_PC23	Data line
32	GND	–	GND	Ground
33	LCDPCK	PC30	LCD_PCK_PC30	Pixel clock
34	LCDVSYNC	PC27	LCD_VSYNC_PC27	Vertical synchronization
35	LCDHSYNC	PC28	LCD_HSYNC_PC28	Horizontal synchronization
36	LCDDEN	PC29	LCD_DEN_PC29	Data enable
37	–	–	NC	Not connected
38	–	–	NC	Not connected
39	–	–	NC	Not connected
40	–	–	NC	Not connected
41	LCDDISP	PC24	LCD_DISP_PC24	Display enable signal
42	TWD	PA30	LCD_TWD_PA30	I²C data line (maXTouch)
43	TWCK	PA31	LCD_TWCK_PA31	I²C clock line (maXTouch)
44	GPIO	PC25	LCD_IRQ1_PC25	maXTouch interrupt line
45	GPIO	PC31	LCD_IRQ2_PC31	Interrupt line for other I²C devices
46	LCDPWM	PC26	LCD_PWM_PC26	Backlight control
47	RESET	PB25	MPU_NRSTOUT_PB25	Reset for both display and maXTouch
48	3.3V/5V_MAIN	VDD	VDD	3.3V or 5V supply (0R)
49	3.3V/5V_MAIN	VDD	VDD	3.3V or 5V supply (0R)
50	GND	_	GND	Ground