NVIDIA Jetson TX2/TX2i OEM Product Design Guide
JETSON TX2/TX2i OEM PRODUCT | DESIGN GUIDE | 20180618
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Table 41. eDP Signal Connections
Module Pin Name
Type
Termination
Description
DPx_TX[3:0]+/
–
O
Series 0.1uF capacitors on all lines
eDP/DP Differential CLK/Data Lanes:
Connect to matching pins on display
connector. See DP/HDMI Pin Mapping & connection diagram for details.
/
–
I/OD
Series 0.1uF capacitors
eDP/DP: Auxiliary Channels
: Connect to
AUX_CH
+/
–
on display connector.
DPx_HPD
I
eDP/DP: Hot Plug Detect
: Connect to
HPD
pin on display connector.
Table 42. Recommended eDP/DP observation (test) points for initial boards
Test Points Recommended
Location
One for each signal line.
Near display connector. Connector pins can be used if accessible.
Note:
Test points must be done carefully to minimize signal integrity impact. Avoid stubs & keep pads small & near signal traces
7.2.2 HDM I
A standard DP 1.2a or HDMI V2.0 interface is supported. These share the same set of interface pins, so either Display Port or
HDMI can be supported natively. Dual-Mode DisplayPort(DP++ ) can be supported, in w hich the DisplayPort connector logically
outputs TMDS signaling to a DP-to-HDMI dongle.
7.2.3 HDM I
Figure 26: HDMI Connection Example
Jetson TX2/TX2i
CEC Gati ng
Circui try
1
0
k
Ω
1
0
k
Ω
VDD_3V3_SYS
1
.8
k
Ω
1
.8
k
Ω
VDD_5V0_HDMI
Tegra - HDMI
HDMI_DPx_TXDP3
HDMI_DPx_TXDN3
HDMI_DPx_TXDP2
HDMI_DPx_TXDN2
HDMI_DPx_TXDP1
HDMI_DPx_TXDN1
HDMI_DPx_TXDP0
HDMI_DPx_TXDN0
DP_AUX_CH1_P
DP_AUX_CH1_N
DP_AUX_CH1_HPD
eDP
HDMI_DPx
HDMI_CEC
1
0
k
Ω
B3 6/A33
B3 5/A35
B3 4/A34
B3 3
G37/D37
G36/D36
F38/C3 8
F37/C3 7
H39/E3 9
H36/E3 6
H35/E3 5
H38/E3 8
DPx_HPD
DPx
DPx_AUX_CH
–
HDMI_CEC
DPx_TX2
DPx_TX2
DPx_TX1
DPx_TX1
DPx_TX0
DPx_TX
DPx_TX3
DPx_TX3
FET
Enable
5V0_HDMI_EN
0. 1uF
0. 1uF
0. 1uF
0. 1uF
0. 1uF
0. 1uF
0. 1uF
0. 1uF
,
1%
00
@100MHz
See Note 1
Level Shifter
Level Shifter
VDD_1V8
DP0/DP1
TXD0_P
TXD0_N
TXD1_P
TXD1_N
TXD2_P
TXD2_N
TXC_P
TXC_N
SCL
SDA
HPD
CK+
CK-
D0+
D0-
D1+
D1-
D2+
D2-
CEC
+5V
ESD
100k
Ω
0. 1uF
HDMI Connector
1
0
0
k
Ω
10uF
EMI
See Note 2
See
Note 2
See Note 3
ESD
R
S
R
S
R
S
R
S
R
S
R
S
R
S
R
S
See
Note 4
CMC
Note:
1.
Level shifters required on DDC/HPD. Jetson TX2/TX2i pads are not 5V tolerant & cannot directly meet HDMI V
IL
/V
IH
requirements. HPD level shifter can be non-inverting or inverting.
2.
If EMI/ESD devices are necessary, they must be tuned to minimize the impact to signal quality, which must meet the
timing & electrical requirements of the HDMI specification for the modes to be supported. See requirements &
recommendations in the related sections of the HDMI Interface Signal Routing Requirements table.
3.
The HDMI_DP_TXx pads are native DP pads & require series AC capacitors (AC
CAP
) & pull-downs (R
PD
) to be HDMI
compliant. The 499
Ω, 1%
pull-downs must be disabled when Tegra is off to meet the HDMI V
OFF
requirement. The
enable to the FET, enables the pull-downs when the HDMI interface is to be used. Chokes between pull-downs & FET are
required for Standard Technology designs and recommended for HDI designs.
4.
Series resistors R
S
are required. See the R
S
section of the HDMI Interface Signal Routing Requirements table for details.
5.
Tegra supports a single CEC controller that can be associated with one of the display output heads.
