Nagami Features and Specifications

Overview

The Nagami is a compact, high-performance System-on-Module (SoM) based on the Allwinner T113-s3. Designed in a full-size miniPCIe form factor, it integrates dual ARM Cortex-A7 cores with a broad range of communication and multimedia interfaces. The module adheres to NetCube Systems’ proprietary CISEM (Common Interface for Small Embedded Modules) standard, offering seamless integration in embedded systems where space and flexibility are key.

Features

Processing Power

  • Built around the Allwinner T113-s3 SoC, the Nagami delivers dual-core ARM Cortex-A7 processing at up to 1.2GHz.
  • Also includes a HiFi4 DSP, ideal for offloading audio or signal processing tasks.

Memory

  • Comes equipped with 128MB of DDR3 RAM, running at speeds up to 800MHz, suitable for multitasking and real-time control workloads.

Connectivity & Peripherals

  • Ethernet: 10/100 Mbps Ethernet PHY built in, simplifying networking in embedded environments.
  • USB: One USB 2.0 OTG and one USB 2.0 Host interface are available for flexible device/host roles.
  • Serial Interfaces: Offers up to five UARTs (two supporting hardware flow control), along with multiple I2C and SPI buses.
  • Audio: Supports up to two I2S/PCM interfaces, as well as SPDIF input and output for digital audio transmission.
  • CAN Bus: Includes two CAN interfaces for robust communication in industrial and automotive scenarios.
  • PWM and LED: Seven PWM channels and a dedicated LEDC interface provide fine control over motors, lighting, or other peripherals.

Storage

  • Onboard 4GB eMMC provides reliable non-volatile storage for system firmware and application data.
  • Includes a I2C EEPROM, factory-programmed with a MAC address.

Expansion & Integration

  • External I²C Connector: Enables quick attachment of compatible I2C devices, with an interrupt-capable pin for signaling.
  • ESP32 Coprocessor: An onboard ESP32 module is connected via UART and SDIO, enabling wireless functionality (WiFi/Bluetooth) out of the box.
  • SD3.0 Support: One SD card interface supports high-speed 4-bit SDIO operation for removable storage or SDIO devices.

Power & Form Factor

  • Operates on a single +3.3V supply, minimizing power system complexity.
  • Physically conforms to the standard full-size miniPCIe card shape, simplifying integration into carrier boards following the CISEM interface.

Default I/O Configuration

By default, the following interfaces are enabled on the Nagami:

  • CAN0 and CAN1: Dual CAN bus channels for vehicle or industrial communication.
  • UART3: Primary serial port for bootloader access and debugging console.
  • SPI1: SPI interface with HOLD and WP signal support for secure flash memory applications.
  • TWI2 (I2C): Configurable I2C bus for general-purpose peripherals.
  • SDC0: SD card interface with 4-bit wide bus operation.
  • I2S1: Audio interface with both input and output channels for stereo digital audio.

The TWI3 interface is fixed and reserved for the onboard EEPROM and external I²C connector; it cannot be reassigned.

Operating System Support

The Nagami is compatible with Linux-based embedded operating systems such as Buildroot or Yocto, and supports mainline U-Boot and Linux Kernel builds for easy system customization.

Development Tools and Languages

Recommended languages include C, C++, and Python, although the platform is flexible enough to support other languages depending on the application requirements and runtime environment.

Specifications

  • Processor: Allwinner T113-s3 (Dual ARM Cortex-A7 @ 1.2GHz + HiFi4 DSP)
  • Memory: 128MB DDR3 @ 800MHz
  • Connectivity:
  • Ethernet: 10/100 Mbps with PHY
  • USB: 1x USB 2.0 OTG, 1x USB 2.0 Host
  • UART: Up to 5 UARTs (2 with RTS/CTS)
  • I2C: Up to 4 interfaces
  • SPI: Up to 1 interface with HOLD/WP support
  • CAN: 2x CAN interfaces
  • Audio: 2x I2S/PCM, 1x SPDIF In, 1x SPDIF Out
  • Storage:
  • eMMC: 4GB onboard
  • I2C EEPROM: Factory programmed with MAC address
  • SDIO: 1x SD3.0 4-bit interface (SDC0)
  • Expansion & Peripherals:
  • JST-SH 5-Pin connector with interrupt pin
  • ESP32 coprocessor over SDIO + UART
  • 7 PWM channels
  • LEDC interface
  • Power: Single +3.3V input
  • Form Factor: miniPCIe full-size card, CISEM compliant

Use Cases

The Nagami is ideal for:

  • Industrial control systems
  • Audio processing devices
  • IoT gateways and hubs
  • Vehicle telematics and CAN gateways
  • Compact edge computing nodes

Conclusion

The Nagami System-on-Module provides a modern, high-integration embedded computing platform in a familiar miniPCIe footprint. Its dual-core architecture, rich I/O selection, and on-module wireless support make it a powerful choice for both new designs and upgrades of existing systems within the CISEM ecosystem.