Ampro Corporation COM 830 User Manual
Page 38
Chapter 3
Signals and Pinout Tables
32
Reference Manual
COM 830
VGA_BLU
Blue for monitor. Analog DAC output,
designed to drive a 37.5-Ohm equivalent load.
O
Analog
PD 150R
Analog output
VGA_HSYN
C
Horizontal sync output to VGA monitor
O 3.3V
VGA_VSYN
C
Vertical sync output to VGA monitor
O 3.3V
VGA_I2C_C
K
DDC clock line (I²C port dedicated to identify
VGA monitor capabilities)
I/O 5V
PU 2k2
5V
VGA_I2C_D
AT
DDC data line.
I/O 5V
PU 2k2
5V
Table 3-10. LVDS Signal Descriptions
Signal
Description
I/O
PU/PD
Comment
LVDS_A[0:3]+
LVDS_A[0:3]-
LVDS Channel A differential pairs
O
LVDS
LVDS_A_CK+
LVDS_A_CK-
LVDS Channel A differential clock
O
LVDS
LVDS_B[0:3]+
LVDS_B[0:3]-
LVDS Channel B differential pairs
O
LVDS
LVDS_B_CK+
LVDS_B_CK-
LVDS Channel B differential clock
O
LVDS
LVDS_VDD_EN LVDS panel power enable
O 3.3V
PD 10k
LVDS_BKLT_E
N
LVDS panel backlight enable
O 3.3V
LVDS_BKLT_C
TRL
LVDS panel backlight brightness
control
O 3.3V
LVDS_I2C_CK
DDC lines used for flat panel detection
and control.
O 3.3V
PU 2k2
3.3V
LVDS_I2C_DAT DDC lines used for flat panel detection
and control.
I/O
3.3V
PU 2k2
3.3V
Table 3-11. TV-Out Signal Descriptions
Signal
Description
I/O
PU/PD
Commen
t
TV_DAC_A
TVDAC Channel A Output supports the
following: Composite video: CVBS
Component video: Chrominance (Pb) analog
signal
S-Video: not used
O
Analog
PD 150R
Analog
output
Table 3-9. CRT Signal Descriptions (Continued)