Unex SOM-300 Series, Быстрый старт

Страница: 12 / 23

Doc. No: Unex-QSG-21-003
12/23
A printed version of this document is an uncontrolled copy
© 2021 Unex Technology Corporation – Company Confidential
Pin Symbol Type Level (V) Description Note
43 GND G - Ground
45 5V P 5 5V/2A power input Proprietary
47 5V P 5 5V/2A power input Proprietary
49 1PPS I (PU) 3.3 GNSS 1PPS input (active HIGH) Proprietary
51 TAMPER#
I
(PU/PD)
3.3
Tamper detection (active LOW)
PU/PD decided by SW1.7
TRIGGER_SW ON: 1K
Ω PU
TRIGGER_SW OFF: 32K
Ω PD (min)
Proprietary
Table 7: SOM-301(v2)/SOM-351 mini PCIe row 1 pinout
Pin Symbol Type Level (V) Description Note
2 3.3 Vaux P 3.3
Powered by 5V: 115mA (max)
Powered by 3.3 Vaux: 3000mA (max)
4 GND G - Ground
6 NC - - Not connected
8 NC - - Not connected
10 NC - - Not connected
12 NC - - Not connected
14 NC - - Not connected
16 NC - - Not connected
- KEY - - Mechanical key
18 GND G - Ground
20 NC - - Not connected
22 PERST# I (PU) 3.3
CRATON2 reset (2K
Ω PU, active LOW)
Signal rising edge (0 -> 1) will reset
mPCIe module
24 3.3 Vaux P 3.3
Powered by 5V: 115mA (max)
Powered by 3.3 Vaux: 3000mA (max)
26 GND G - Ground
28 NC - - Not connected
30 NC - - Not connected
32 NC - - Not connected
34 GND G - Ground
36 USB_D- I/O 0.4 USB data line -
38 USB_D+ I/O 0.4 USB data line +
40 GND G - Ground
42 NC - - Not connected
44 NC - - Not connected
46 NC - - Not connected
48 NC - - Not connected
50 GND G - Ground
52 3.3 Vaux P 3.3
Powered by 5V: 115mA (max)
Powered by 3.3 Vaux: 3000mA (max)
8.3.
I/O Cable Pinout
The I/O cable can help user to install SOM-301(v2)/SOM-351 on an existing mPCIe
system board without modifying the system board hardware.