rtd cpuModules CME34BT, User Manual

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36 CME34BT cpuModule BDM-610000088 Rev A
DisplayPort Connector (CN19)
The DisplayPort connector on the CME34BT cpuModule is a standard PC DisplayPort connector complete
with latch holes to provide a rugged connecting solution for latching DisplayPort cables.
The DisplayPort supports all mandatory features of the VESA Embedded DisplayPort (eDP) 1.3 standard
and supports audio over the connection. Full bandwidth transmission is supported over a two meter cable,
with reduced bandwidth transmission supported up to a length of 15 meters.
The connection can directly output single-link HDMI and DVI signals by using a simple passive adapter.
Passive adapters acheive HDMI and DVI signaling by adjusting the lower signal levels output by the
connector.
Table 10 provides the pinout of the DisplayPort connector.
Table 10 DisplayPort Connector (CN19)
Pin Signal Standard Function DVI / HDMI mode
1
1. Requires special passive adapter
In/Out
1 LN0+ Main Link, Lane 0 (positive) TMDS Channel 2 (positive) out
2 GND Ground Ground out
3 LN0- Main Link, Lane 0 (negative) TMDS Channel 2 (negative) out
4 LN1+ Main Link, Lane 1 (positive) TMDS Channel 1 (positive) out
5 GND Ground Ground out
6 LN1- Main Link, Lane 1 (negative) TMDS Channel 1 (negative) out
7 LN2+ Main Link, Lane 2 (positive) TMDS Channel 0 (positive) out
8 GND Ground Ground out
9 LN2- Main Link, Lane 2 (negative) TMDS Channel 0 (negative) out
10 LN3+ Main Link, Lane 3 (positive) TMDS Clock (positive) out
11 GND Ground Ground out
12 LN3- Main Link, Lane 3 (negative) TMDS Clock (negative) out
13 CFG1 Configuration Pin 1 Cable Adapter Detect out
14 CFG2 Configuration Pin 2 Consumer Electronics Control
2
2. HDMI mode only
out
15 AUX+ Auxiliary Channel (positive) DDC Clock in/out
16 GND Ground Ground out
17 AUX- Auxiliary Channel (negative) DDC Data in/out
18 HPD Hot Plug Detect Hot Plug Detect in
19 DPG Return for DPV Return for DPV out
20 DPV +3.3V DC Power +3.3V DC Power out