Seco Qseven CQ7-A42 User Manual page 30

DP_LANE3+/DP_LANE3-: Display Port differential pair #3.
DP_HPD: Hot Plug Detect Input signal.
HDMI_CEC: HDMI Consumer Electronics Control (CEC) Line. This signal is used only for HDMI compatibility when a HDMI adapter is connected to the DP
connector. According to Qseven
®
HDMI_CEC. In case the Qseven
Please refer to the User Guide of the Qseven
Optional HDMI connector - CN19
Pin Signal
1 TMDS_LANE2+
3 TMDS_LANE2-
5 GND
7 TMDS_LANE0+
9 TMDS_LANE0-
11 GND
13 HDMI_CEC
15 HDMI_CTRL_CLK
17 GND
19 HDMI_HPD
HDMI_CEC: HDMI Consumer Electronics Control (CEC) Line. As already described in the description of optional DP connector, this signal is, in reality, a General
Purpose 1_wire bus interface, that can be used for implementation of HDMI_CEC functionality. The support of such functionality depends on the Qseven
used.
HDMI_HPD: Hot Plug Detect Input signal.
For ESD protection, on all data and voltage lines are placed clamping diodes for voltage transient suppression.
Always use HDMI-certified cables for the connection between the board and the HDMI display; a category 2 (High-Speed) cable is recommended for higher
resolutions, category 1 cables can be used for 720p resolution.
CQ7-A42
CQ7-A42 - Rev. First Edition: 1.0 - Last Edition: 2.0 - Author: S.B. - Reviewed by G.G. Copyright © 2016 SECO S.r.l.
® specifications, the signal is, in reality, a General Purpose 1_wire bus interface, that can be used for implementation of
module used doesn't support the HDMI_CEC functionality, then this signal could be not available or have a different utilisation.
® module used for more information on this signal.
Pin Signal
2 GND
4 TMDS_LANE1+
6 TMDS_LANE1-
8 GND
10 TMDS_CLK+
12 TMDS_CLK-
14 ---
16 HDMI_CTRL_DAT
18 +5V
HDMI
The second possible configuration is to have the carrier board with a HDMI connector
mounted.
In this case, the connector mounted will be a standard
certified HDMI connector, type A, model FCI Connect p/n
10029449-111RLF, with the pinout shown in the table on the
left.
Signals involved in HDMI management are the following:
TMDS_CLK+/TMDS_CLK-: TMDS differential Clock.
TMDS_LANE0+/TMDS_LANE0-: TMDS differential pair #0.
TMDS_LANE1+/TMDS_LANE1-: TMDS differential pair #1.
TMDS_LANE2+/TMDS_LANE2-: TMDS differential pair #2.
HDMI_CTRL_DAT: DDC Data line for HDMI panel.
HDMI_CTRL_CLK: DDC Clock line for HDMI panel.
®
module
30