Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
955
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
44.4
I/O Lines Description
44.5
Product Dependencies
44.5.1 I/O
Lines
The pins used for interfacing the LCD Controller may be multiplexed with PIO lines. The programmer must first program
the PIO Controller to assign the pins to their peripheral function. If I/O lines of the LCD Controller are not used by the
application, they can be used for other purposes by the PIO Controller.
the PIO Controller to assign the pins to their peripheral function. If I/O lines of the LCD Controller are not used by the
application, they can be used for other purposes by the PIO Controller.
Table 44-1. I/O Lines Description
Name
Description
Type
LCD_PWM
Contrast control signal, using Pulse Width Modulation
Output
LCD_HSYNC
Horizontal Synchronization Pulse
Output
LCD_VSYNC
Vertical Synchronization Pulse
Output
LCD_DAT[23:0]
LCD 24-bit data bus
Output
LCD_DEN
Data Enable
Output
LCD_DISP
Display Enable signal
Output
LCD_PCLK
Pixel Clock
Output
Table 44-2. I/O Lines
Instance
Signal
I/O Line
Peripheral
LCDC
LCDDAT0
PC0
A
LCDC
LCDDAT1
PC1
A
LCDC
LCDDAT2
PC2
A
LCDC
LCDDAT3
PC3
A
LCDC
LCDDAT4
PC4
A
LCDC
LCDDAT5
PC5
A
LCDC
LCDDAT6
PC6
A
LCDC
LCDDAT7
PC7
A
LCDC
LCDDAT8
PC8
A
LCDC
LCDDAT9
PC9
A
LCDC
LCDDAT10
PC10
A
LCDC
LCDDAT11
PC11
A
LCDC
LCDDAT12
PC12
A
LCDC
LCDDAT13
PC13
A
LCDC
LCDDAT14
PC14
A
LCDC
LCDDAT15
PC15
A
LCDC
LCDDAT16
PC16
A
LCDC
LCDDAT17
PC17
A
LCDC
LCDDAT18
PC18
A
LCDC
LCDDAT19
PC19
A