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IGEP
TM
SMARC iMX6
Hardware Reference Manual
ISEE 2007 S.L. All rights reserved, IGEP is a registered trademark from ISEE 2007 S.L. The following is provided for informational purposes only.
NIF:ESB64377005 Document:
MAN-IGEP0046-001
/ Revision:
1.3
/ Date:
23/06/2016
34
4.19
HDMI
The SMARC HDMI data pairs may be routed directly from the SMARC Module pins to a suitable Carrier HDMI connector.
Since HDMI is a hot-plug capable interface, it is important for the Carrier to implement ESD protection on all of the
HDMI lines. The ESD protection on the data lines must be low capacitance so as not to degrade high speed signalling.
The data lines must route through the ESD protection device pins in a no-stub fashion. The ESD protection should be
located close to the HDMI connector.
The next figure show how to connect SMARC HDMI pins to HDMI connector (page 35 of SMARC Design Guide
V_IO=1V8
).
Figure 27 HDMI connection example
Pin
Volt
Level
Dev
Pin
Main Function
Main
MUX
Type
Fixed
Function
Comments
P92
DIF
K4
0
HDMI 1.4a
YES
HDMI data differential pair D2 +
P93
DIF
K3
HDMI_D2-
0
HDMI 1.4a
YES
HDMI data differential pair D2 -
P95
DIF
J4
0
HDMI 1.4a
YES
HDMI data differential pair D1 +
P96
DIF
J3
HDMI_D1-
0
HDMI 1.4a
YES
HDMI data differential pair D1 -
P98
DIF
K6
0
HDMI 1.4a
YES
HDMI data differential pair D0 +
P99
DIF
K5
HDMI_D0-
0
HDMI 1.4a
YES
HDMI data differential pair D0 -
P101
DIF
J6
0
HDMI 1.4a
YES
HDMI differential clock output pair +
P102
DIF
J5
HDMI_CK-
0
HDMI 1.4a
YES
HDMI differential clock output pair -
P104
1V8
K1
HDMI_HPD
0
HDMI 1.4a
YES
HDMI Hot Plug Detect input. This signal has a 47K PU
resistor.
P105
1V8
U5
HDMI_CTRL_CK
4
HDMI 1.4a
YES
I2C2 bus clock. This signal has a 1K5 PU resistor.
P106
1V8
T7
HDMI_CTRL_DAT
4
HDMI 1.4a
YES
I2C2 bus data. 0x08 is used. This signal has a 1K5 PU
resistor.
P107
1V8
H19
HDMI_CEC
6
HDMI 1.4a
YES
HDMI Consumer Electronics Control . This signal has a
47K PU resistor.
Table 23 HDMI pins