cExpress-TL User’s Guide
PICMG COM.0 R3.0
Page 26
Copyright © 2021 ADLINK Technology, Inc.
4.3.2
Analog VGA
Name
Pin #
Description
I/O
PU / PD
Comment
VGA_RED
B89
Red for monitor. Analog DAC output, designed to drive
a 37.5-Ohm equivalent load.
O Analog
PD 150R
VGA_GRN B91
Green for monitor. Analog DAC output, designed to
drive a 37.5-Ohm equivalent load.
O Analog
PD 150R
VGA_BLU B92
Blue for monitor. Analog DAC output, designed to drive
a 37.5-Ohm equivalent load.
O Analog
PD 150R
VGA_HSYNC
B93
Horizontal sync output to VGA monitor
O 3.3V
VGA_VSYNC
B94
Vertical sync output to VGA monitor
O 3.3V
VGA_I2C_CK B95 DDC clock line (I²C port dedicated to identifying VGA
monitor capabilities)
I/O OD 3.3V
PU 2k2 3.3V
VGA_I2C_DAT
B96
DDC data line.
I/O OD 3.3V
PU 2k2 3.3V
Note
: VGA is BOM option support (in place of DDI 3) by project basis