SP2301 Linux Dual Port EVB

Introduction

The SP2301 Linux EVB is a high-integration embedded Linux development board designed by WIZnet for industrial IoT and edge computing applications. Powered by a Cortex-A5 core-based SP2301 industrial-grade module, this EVB provides a feature-rich platform for robust and scalable industrial solutions.

Its design ensures that developers can easily implement reliable communication and automation systems, with built-in support for dual-port Ethernet through WIZnet's W5100S-io or W5500-io modules.

Key Features at a Glance

Processor: Cortex-A5 core industrial module (SP2301)

• Processor: Cortex-A5 core industrial module (SP2301)

Operating System: Linux/RTOS support

• Operating System: Linux/RTOS support

Ethernet Ports: Dual-port 100M Ethernet

Control Plane: SP2301 core board direct connection

• Control Plane: SP2301 core board direct connection

Data Plane: W5100S-io / W5500-io expansion (hardware TCP/IP stack)

• Data Plane: W5100S-io / W5500-io expansion (hardware TCP/IP stack)
• Ethernet Ports: Dual-port 100M EthernetControl Plane: SP2301 core board direct connectionData Plane: W5100S-io / W5500-io expansion (hardware TCP/IP stack)

Wireless:

4G full-netcom (via Mini PCIe)

• 4G full-netcom (via Mini PCIe)

WiFi 6 / BT 5.0 (via M.2)

• WiFi 6 / BT 5.0 (via M.2)
• Wireless:4G full-netcom (via Mini PCIe)WiFi 6 / BT 5.0 (via M.2)

Industrial Buses:

4x RS485 (with direction control + surge protection)

• 4x RS485 (with direction control + surge protection)

2x CAN bus

• 2x CAN bus
• Industrial Buses:4x RS485 (with direction control + surge protection)2x CAN bus

Storage:

Micro TF card slot

• Micro TF card slot

QSPI Flash (W25Q32JVSSIQ*1)

• QSPI Flash (W25Q32JVSSIQ*1)
• Storage:Micro TF card slotQSPI Flash (W25Q32JVSSIQ*1)

Expansion: 90 programmable GPIOs, I2C, UART, SPI

• Expansion: 90 programmable GPIOs, I2C, UART, SPI

Display / Vision: Dual MIPI CSI/DSI (camera + display interface)

• Display / Vision: Dual MIPI CSI/DSI (camera + display interface)

Power Input: 9-36V wide voltage DC input

• Power Input: 9-36V wide voltage DC input

Temperature Range: -40°C to +85°C (industrial grade)

• Temperature Range: -40°C to +85°C (industrial grade)

Protection: ESD, power isolation, reverse polarity protection, signal impedance matching

• Protection: ESD, power isolation, reverse polarity protection, signal impedance matching

Detailed Specifications

Power

Input: DC005 jack, 9V ~ 36V wide voltage range

• Input: DC005 jack, 9V ~ 36V wide voltage range

Power architecture: 4V / 3.3V / 1.8V hierarchical power management

• Power architecture: 4V / 3.3V / 1.8V hierarchical power management

Ethernet

SP2301 core Ethernet: 100 Mbps for control

• SP2301 core Ethernet: 100 Mbps for control

Expansion Ethernet: W5100S-io / W5500-io 100 Mbps for data, with hardware TCP/IP offload

• Expansion Ethernet: W5100S-io / W5500-io 100 Mbps for data, with hardware TCP/IP offload

USB

Type: Type-C 16P

• Type: Type-C 16P

Support: USB OTG functionality

• Support: USB OTG functionality

Indicators

Power indicator LED

• Power indicator LED

4G network status LED

• 4G network status LED

GPIO user-controllable LED

• GPIO user-controllable LED

Cellular Communication

Interface: Mini PCIe slot (50 x 32 mm)

• Interface: Mini PCIe slot (50 x 32 mm)

Supported Modules: Universal 4G modules

• Supported Modules: Universal 4G modules

Antenna: IPEX FPC / IPEX to SMA elbow onboard antenna

• Antenna: IPEX FPC / IPEX to SMA elbow onboard antenna

SIM: Micro SIM self-ejecting slot

• SIM: Micro SIM self-ejecting slot

WiFi / Bluetooth

Interface: M.2 slot (30 x 22 mm)

• Interface: M.2 slot (30 x 22 mm)

Supported Modules: Universal M.2 WiFi/BT (SDIO)

• Supported Modules: Universal M.2 WiFi/BT (SDIO)

Antenna: IPEX FPC / IPEX to SMA elbow onboard antenna

• Antenna: IPEX FPC / IPEX to SMA elbow onboard antenna

Expansion Interfaces

Connectors: 3x 2.54mm 2x15 pin headers

• Connectors: 3x 2.54mm 2x15 pin headers

Functions: GPIO, I2C, UART, SPI

• Functions: GPIO, I2C, UART, SPI

Dual-Port Ethernet: Reliable Separation of Control and Data

The unique dual-port design of the SP2301 Linux EVB separates the control plane and data plane physically:

The SP2301 native Ethernet port handles control signals, commands, and system management.

• The SP2301 native Ethernet port handles control signals, commands, and system management.

The W5100S-io / W5500-io expansion port focuses on high-speed data transfer, with hardware TCP/IP acceleration, reducing CPU load and increasing throughput.

• The W5100S-io / W5500-io expansion port focuses on high-speed data transfer, with hardware TCP/IP acceleration, reducing CPU load and increasing throughput.

This design improves system stability, security, and communication integrity — critical in industrial applications where control and data flows must not interfere with each other.

Industrial-Grade Reliability

The SP2301 Linux EVB is built for harsh conditions:

Wide temperature support: -40°C to +85°C

• Wide temperature support: -40°C to +85°C

Robust power design: handles voltage fluctuations and supports reverse connection protection

• Robust power design: handles voltage fluctuations and supports reverse connection protection

ESD protection and signal integrity design

• ESD protection and signal integrity design

These features ensure the board can be deployed confidently in factory automation, smart grid, transportation, and other demanding environments.

Conclusion

With its comprehensive connectivity, flexible expansion, and dual-port Ethernet capability via the W5100S-io / W5500-io, the SP2301 Linux EVB is a powerful solution for developers creating next-generation industrial IoT devices and edge gateways. Its modular design accelerates prototyping, testing, and scaling to mass production, while its industrial-grade reliability ensures long-term, stable operation in critical applications.