Phytec phyCORE-i.MX31, Hardware Manual

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The phyCORE-i.MX on the Development Board
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PHYTEC Messtechnik GmbH 2007 L-700e_0
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33 LCD_U/D Up/Down reverse mode
34 LCD_V/Q VGA/QVGA mode
35 x_I2C_SCL I2C clock
36 LCD_BRIGHT LCD bright
37 x_I2C_SDA I2C data
38 x_LCD_EN Direct LCD enable
39 LCDPWR LCD power
40 VCC_5V 5V power supply
41 LCD_D3_CLS Dedicated sharp signals
42 LCD_DRDY0 Dedicated sharp signals
43 LCD_D3_REV Dedicated sharp signals
44 LCD_D3_SPL Dedicated sharp signals
45 TSX1 Touch screen
46 TSX2 Touch screen
47 TSY1 Touch screen
48 TSY2 Touch screen
Dipswitch SW1 on the Carrier Board offers the possibility of adjusting some general display options. A
detailed description of each dipswitch position is presented below.
SW1-1
Controls the horizontal orientation of the picture. Flipping this switch will cause the picture
to mirror horizontally. In the ON position the output of this switch is a LOW. In the OFF
position the output of this switch is a 3.3V HIGH if SW1-4 is in the ON position, otherwise
the output will be floating.
SW1-2
Controls the vertical orientation of the picture. Flipping this switch will cause the picture to
mirror vertically. In the ON position the output of this switch is a LOW. In the OFF position
the output of this switch is a 3.3V HIGH if SW1-4 is in the ON position, otherwise the
output will be floating.
SW1-3
Controls VGA or QVGA mode select. In the ON position the output of this switch is a
LOW. In the OFF position the output of this switch is a 3.3V HIGH if SW1-4 is in the ON
position, otherwise the output will be floating.
SW1-4
Enables and disables the LCD buffers and power. In the ON position the output of this
switch is LOW and the LCD is enabled. In the OFF position the output of this switch is
VCC_LCD (default 2.775V), the LCD buffers are disabled, and LCD power is removed
from the LCDPWR pins of X23.
SW1 switch positions 1, 2, and 3 all provide a LOW or HIGH 3.3V signal depending on the switch
position. All three switch outputs are routed to the LCD pin header X23.The Sharp LQ035Q7DH06 LCD
provided with the i.MX31 Rapid Development Kit only makes use of the SW1-2 switch and SW1-4 switch.