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Signal Group
Differential Impedance Target
Single End
Isolation to equivalent pairs
Isolation
to
other
groups
LA
LB
Max length of LA+LB
Length matching
Reference Plane
Carrier Board Via Usage
Notes:
1. SOM-3567 is not support eDP interface.
2.12 DisplayPort Interfaces
2.12.1 DisplayPort Interface Signals (from Module)
Qseven Rev 2.0 modules optionally support one DisplayPort Version 1.2 interface. This
interface is shared with TMDS signals.
DisplayPort is an open, industry standard digital display interface that is under
development within the Video Electronics Standards Association (VESA). The DisplayPort
specification defines a scalable digital display interface with optional audio and content
protection capability. It defines a license-free, royalty-free, state-of-the-art digital
audio/video interconnect intended to be used primarily between a computer and its
display monitor.
The DisplayPort interface supports 1, 2, or 4 data pairs that carry the video signal, clock
and optional audio signals. The video signal of the DisplayPort interface is not compatible
with DVI or HDMI but a DisplayPort connector can pass these signals through. While DVI
eDP
85 Ω ±10%
55Ω ±10%
20 mils (MS) and 15 mils (DS)
signal
20 mils (MS) and 15 mils (DS)
SOM-3567 is not support.
Carrier Board Length
eDP differential pairs to eDP connector:
AUX channel:
Differential pairs (intra-pair): Max. ±5 mils
For each channel, match the lengths of the
differential pairs (Inter-Pair) to be within a
1-inch window (max length – min length < 1
inch (2.54
cm)).
GND referencing preferred.
Min 40-mil trace edge-to-major plane edge
spacing.
Max. 2 vias.
６７
1
1
1
1
1
1
1
1
1
1
1
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