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R
VGA Display Port
The Spartan-3E Starter Kit board includes a VGA display port via a DB15 connector.
Connect this port directly to most PC monitors or flat-panel LCDs using a standard
monitor cable. As shown in
the top of the board.
Pin 5
Pin 10
Pin 15
DB15 VGA Connector
DB15
Connector
1
6
11
2
7
12
3
8
13
4
9
14
5
10
15
Figure 6-1: VGA Connections from Spartan-3E Starter Kit Board
The Spartan-3E FPGA directly drives the five VGA signals via resistors. Each color line has
a series resistor, with one bit each for VGA_RED, VGA_GREEN, and VGA_BLUE. The
series resistor, in combination with the 75Ω termination built into the VGA cable, ensures
that the color signals remain in the VGA-specified 0V to 0.7V range. The VGA_HSYNC
and VGA_VSYNC signals using LVTTL or LVCMOS33 I/O standard drive levels. Drive
the VGA_RED, VGA_GREEN, and VGA_BLUE signals High or Low to generate the eight
colors shown in
Spartan-3E Starter Kit Board User Guide
UG230 (v1.0) March 9, 2006
Figure
(front view)
Red
Green
Blue
Horizontal Sync
Vertical Sync
GND
Table
6-1.
www.xilinx.com
6-1, the VGA connector is the left-most connector along
Pin 1
Pin 6
Pin 11
270Ω
270Ω
270Ω
82.5Ω
82.5Ω
Chapter 6
(H14)
VGA_RED
(H15)
VGA_GREEN
(G15)
VGA_BLUE
(F15)
VGA_HSYNC
(F14)
VGA_VSYNC
(xx) = FPGA pin number
UG230_c6_01_021706
53
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