Datasheet of CM4 Sensing V1.2

EDA Technology Co.,LTD– Electronics Development Accelerator

4 Internal Interface

4.1 Micro-USB

J22 USB micro-B interface for eMMC burning.

tip：From the security point of view, to prevent malicious burning, it is necessary to disassemble the

case to access the USB micro-B interface.

4.2 Mini PCIe

There is a Mini PCIe expansion interface on CM4 Sensing, which can expand some peripherals, such as

4G and NPU.

Pin

Definition

Pin

Definition

1

GND

28

NC

2

3V3

29

GND

3

B1

30

NC

4

GND

31

PCIE_TXN

5

NC

32

NC

6

NC

33

PCIE_TXP

7

PCIE_CLK_nREQ

34

GND

8

USIM_VDD

35

GND

9

GND

36

USB_DM

10

USIM_DATA

37

GND

11

GND

38

USB_DP

12

USIM_CLK

39

3V3

13

PCIE_CLKP

40

GND

14

USIM_RST

41

3V3

15

GND

42

LED_WWAN