VERSION 1.4
JN30 (38346-X)
HDMI (J9)
This is a 19 pin standard size HDMI connector.
UART 1/2 (J14)
This is a 6 pin JST-GH connector with 1.25 mm pitch. Please connect to USB TTL serial converter (3.3V TTL
level). Normally just connect TXD, RXD, and GND. Swap data lines. Default speed: 115200 bps.
UART1 is optionally tunnelled through the micro controller (MCU). Default: hardware bypass.
Pin
Function
Jetson Nano Description
1
HD
77
HDMI data lane 2
2
GND
-
Ground
3
HDMI_TXD2-
75
HDMI data lane 2
4
HD
71
HDMI data lane 1
5
GND
-
Ground
6
HDMI_TXD1-
69
HDMI data lane 1
7
HD
65
HDMI data lane 0
8
GND
-
Ground
9
HDMI_TXD0-
65
HDMI data lane 0
10
H
83
HDMI clock
11
GND
-
Ground
12
HDMI_TXC-
81
HDMI clock
13
HDMI_CEC
94
14
RSVD
-
reserved pin
15
HDMI_DDC_SCL
100
DP1_AUX_CH
16
HDMI_DDC_SDA
98
DP1_AUX_CH*
17
GND
-
Ground
18
PWR
-
5V power (max. 500 mA)
19
HPD
96
inverted and connected to DP1_HPD
Pin
Function
Jetson Nano
GPIO
Description
1
5V
-
-
5V power output
2
UART1_TXD
103
UART 1 console port (3.3V TTL level): transmit data output
3
UART1_RXD
105
UART 1 console port (3.3V TTL level): receive data input
4
UART2_TXD
/SWCLK
236
UART 2 console port (3.3V TTL level): transmit data
output / SWCLK (to flash the MCU)
5
UART2_RXD
/ SWDIO
238
UART 2 console port (3.3V TTL level): receive data input /
SWDIO
6
GND
-
-
Ground
AUVIDEA GMBH
TECHNICAL REFERENCE MANUAL
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