ZED X One Core Interfaces

The ZED X One Core exposes all its signals on a single 30-pin Micro I-PEX connector located on the back of the module. This page describes that connector, its voltage levels, its pinout, and the I²C address map of the devices on the board.

ZED X One Core back side

The information on this page is provided for mechanical and electrical integration purposes. The ZED X One Core is designed for exclusive use with the ZED Link MIPI capture card; connecting it to a third-party host is not supported. If you need to interface the camera with your own carrier board, please contact support@stereolabs.com.

Connector

Feature	Value
Part number	I-PEX 20525-030E-02
Mating connector	FAW-1233-XX
Connector profile	30 pins, 0.4 mm pitch
Cable	MIPI Micro I-PEX, up to 50 cm

Signal voltage levels

Pins	Group	Level
1 - 4, 6 - 11	MIPI CSI-2 data lanes (D0-D3) and clock	MIPI D-PHY signaling (1.2 V nominal)
12 - 21	Control, sync and interrupts (FSIN, I²C, S_RST, FLASH_EN, INT1/2/4)	1.8 V CMOS
28 - 30	VDD_3V3 supply	3.3 V
5, 22 - 27	Ground / Not connected	-

Pin description

Pin	Name	Level	Dir.	Function
1	MIPI_D3P	D-PHY 1.2 V	Out	CSI-2 data lane 3 (+)
2	MIPI_D3N	D-PHY 1.2 V	Out	CSI-2 data lane 3 (-)
3	MIPI_D1P	D-PHY 1.2 V	Out	CSI-2 data lane 1 (+)
4	MIPI_D1N	D-PHY 1.2 V	Out	CSI-2 data lane 1 (-)
5	GND	-	-	Ground reference
6	MIPI_CP	D-PHY 1.2 V	Out	CSI-2 clock lane (+)
7	MIPI_CN	D-PHY 1.2 V	Out	CSI-2 clock lane (-)
8	MIPI_D0P	D-PHY 1.2 V	Out	CSI-2 data lane 0 (+)
9	MIPI_D0N	D-PHY 1.2 V	Out	CSI-2 data lane 0 (-)
10	MIPI_D2P	D-PHY 1.2 V	Out	CSI-2 data lane 2 (+)
11	MIPI_D2N	D-PHY 1.2 V	Out	CSI-2 data lane 2 (-)
12	FSIN	1.8 V	In	Frame-sync / external trigger input, used for multi-camera synchronization
13	S_SCL	1.8 V	In (OD)	I²C clock, camera control bus, the host is the master
14	S_SDA	1.8 V	Bi-Dir. (OD)	I²C data
15	S_RST	1.8 V	In	Sensor reset
16	NC	-	-	Not connected, do not drive
17	FLASH_EN	1.8 V	Out	Control signal to drive external light sources
18	NC	-	-	Not connected, do not drive
19	INT1	1.8 V	Out	IMU interrupt, BMI088 accelerometer INT1
20	INT2	1.8 V	Out	IMU interrupt, BMI088 accelerometer INT2 (internally connected to INT4)
21	INT4	1.8 V	Out	IMU interrupt, BMI088 gyroscope INT4 (internally connected to INT2)
22-27	NC	-	-	Not connected, do not drive
28-30	VDD_3V3	3.3 V	Power In	3.3 V supply input, three pins in parallel for current capacity

Pins 28 to 30 must all be connected: they carry the 3.3 V supply in parallel to provide the required current capacity. The module draws 0.8 W (240 mA @ 3.3 VDC).

Multi-camera synchronization

The FSIN input (pin 12) is the frame-sync / external trigger signal. When several ZED X One Core cameras are driven from the same trigger source, their exposures are aligned at frame level with a precision of 15 µs, which is what makes multi-camera surround vision and stereo pairs usable for perception.

I²C address map

Address (7-bit)	Device
0x10	AR0234 image sensor
0x19	BMI088 IMU - accelerometer
0x69	BMI088 IMU - gyroscope
0x54	EEPROM
0x56	EEPROM
0x57	EEPROM

Notes on the addresses:

AR0234 image sensor - the address can be reassigned by the driver to another value, through the internal registers of the sensor.
BMI088 IMU - the two addresses are those of the accelerometer and of the gyroscope, which appear as two separate I²C devices. The driver can remap them through the device tree.
EEPROM - usually read only once, at driver probe time, by opening each link one by one.