P0103 Datasheet, PDF (17/50 Pages) AEL Crystals Ltd – Introduction of the VEEK-MT

3.3 Using the 7” LCD Capacitive Touch Screen
The VEEK-MT features a 7-inch capacitive amorphous TFT-LCD panel. The LCD touch screen
offers resolution of (800x480) to provide users the best display quality for developing applications.
The LCD panel supports 24-bit parallel RGB data interface.
The VEEK-MT is also equipped with a Touch controller touch controller, which can read the
coordinates of the touch points through the serial port interface of Touch controller
To display images on the LCD panel correctly, the RGB color data along with the data enable and
clock signals must act according to the timing specification of the LCD touch panel as shown in
Table 3-1
Table 3-2 gives the pin assignment information of the LCD touch panel.
Table 3-1 LCD timing specifications
DCLK
DE
SYNC
ITEM
Dot Clock
DCLK pulse duty
Setup time
Hold time
Horizontal period
Horizontal Valid
Horizontal Blank
Vertical Period
Vertical Valid
Vertical Blank
HSYNC setup time
HSYNC hold time
VSYNC Setup Time
VSYNC Hold Time
Horizontal Period
Horizontal Pulse Width
Horizontal Back Porch
Horizontal Front Porch
Horizontal Valid
Vertical Period
Vertical Pulse Width
SYMBOL
1/tCLK
Tcwh
Tesu
Tehd
tH
tHA
tHB
tV
tVA
tVB
Thst
Thhd
Tvst
Tvhd
th
thpw
thb
thfp
thd
tv
tvpw
MIN.
40
8
8
8
8
8
8
TYP.
33
50
1056
800
256
525
480
45
1056
30
16
210
800
525
13
MAX.
60
UNIT
MHZ
%
ns
ns
tCLK
tCLK
tCLK
tH
tH
tH
ns
ns
ns
ns
tCLK
tCLK
tCLK
tCLK
tCLK
th
th
NOTE
thb+thpw=46DCLK
is fixed
tvpw + tvb =
VEEK-MT User Manual
14
www.terasic.com
May 20, 2014