ADLINK NEON-1020 - Manual (Page 23)

Introduction 13
NEON-1020/1040
Table 1-5: VGA/USB Pin Assignment
1.7 General Purpose Digital Signals
1.7.1 General Purpose Digital Output (EDO)
Four digital output channels are provided, such that, in the com-
mon ground connection of digital output, as shown, when a 1
(logic high) is written by FPGA to a DO channel, sink current
passes through the transistors and the DO channel goes low, and
when a 0 (logic low) is written by FPGA to a DO channel, no cur-
rent passes through the transistors and the DO channel goes high.
Figure 1-9: General Purpose Digital Output (EDO) Circuit
8 VGA HSYNC Output
Horizontal synch of RBG
video signal
9 VGA GREEN Output
Green of RGB video
signal
10 GND GND Ground
11 VGA DDC SCL Bidirectional DDC serial clock line
12 VGA DDC SDA Bidirectional DDC serial data line
Pin Signal Type Description
Max 100 mA
DOn
GND
Max. 30VDC