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Chapter 3 Hardware
MightyBoard 821 Reference Manual 23
• Supports Spread Spectrum Clocking; center and down spread support utilizing an external SSC clock
• Supports panel up-scaling (to fit a smaller source image onto a specific native panel size) as well as
panning and centering CRT Interface
LVDS Interface
Note: The shaded area denotes power or ground.
Table 3-7. LVDS Interface Pin/Signal Descriptions (J2)
Pin # Signal Description Line Channel
NOTE Pins 5-14
constitute 1st
channel
interface of
two channels,
or a single
channel
interface. Pins
17-26
constitute 2nd
channel
interface of
two channels.
1
+12V JP5 = +5 or +12V
source
2
VCC_LCD JP4 = +3.3 or +5V
source
3
GND Ground Gnd
4
GND Ground
5 LVDSB_Clk+ Clock Positive Output Clk
Channel 1
6 LVDSB_Clk- Clock Negative
Output
7 NC Not Connected 3
8 NC Not Connected
9 LVDSB_Y2+ Data Positive Output 2
10 LVDSB_Y2- Data Negative Output
11 LVDSB_Y1+ Data Positive Output 1
12 LVDSB_Y1- Data Negative Output
13 LVDSB_Y0+ Data Positive Output 0
14 LVDSB_Y0- Data Negative Output
15 LVD_BKLTCtl Backlight Control
16 LCD_EN LCD Enable
17 LVDSB_Clk+ Data Positive Output Clk
Channel 2
18 LVDSB_Clk- Data Negative Output
19 NC Not Connected 3
20 NC Not Connected
21 LVDSB_Y2+ Data Positive Output 2
22 LVDSB_Y2- Data Negative Output
23 LVDSB_Y1+ Data Positive Output 1
24 LVDSB_Y1- Data Negative Output
25 LVDSB_Y0+ Data Positive Output 0
26 LVDSB_Y0- Data Negative Output
27 LVDS_DDCPClk Clock
28 LVDS_DDCPData Data
29 LVD_BKLEN Backlight Enable
30 NC Not connected