Analog Devices Inc. RAPID-NI-V2108

Overview

RAPID-NI-V2108 from Innovasic is a pre-integrated network interface module with REM (Remote Ethernet Management) switch functionality, designed for industrial embedded systems requiring dual-port 10/100 Ethernet connectivity, on-board protocol stacks, and host communication via UART or 16-bit parallel interface. It integrates communications controller, Flash, RAM, PHYs, and isolated Ethernet line-side grounding in a single 60.5 mm × 56.3 mm module.

For engineers reviewing the RAPID-NI-V2108 datasheet, RAPID-NI-V2108 pinout, RAPID-NI-V2108 application, or RAPID-NI-V2108 equivalent, key selection considerations include its dual-RJ45 physical layer support, 3.3V-only power requirement (800 mA), 1-second boot-to-operational timing, and dual-host-interface flexibility (UART TX/RX on X1-C3/C4 or 16-bit HPI with FIFO control).

Technical Context

The RAPID-NI-V2108 implements a complete embedded network stack including TCP/IP, UDP, and Ethernet MAC/PHY layers, with two isolated 10/100BASE-TX ports and integrated Link/Activity LEDs inside the RJ45 connectors. Its REM Switch capability enables remote configuration, diagnostics, and firmware updates over Ethernet without host processor intervention.

Host communication is supported through two mutually exclusive interfaces: a UART interface using X1-C3 (TX) and X1-C4 (RX), or a 16-bit parallel interface using UIC0_* (write) and UIC1_* (read) signals across four 16-pin rows (X1-A to X1-D), with dedicated control lines including WR_SEL_N, RD_SEL_N, and FIFONOTEMPTY_N.

Key Specifications

Availability

RAPID-NI-V2108 is available at Aetrix Electronics and suitable for industrial automation gateways, remote terminal units (RTUs), and embedded networking appliances requiring stable component supply, long-term lifecycle support, and field-upgradable firmware.

Supply support for RAPID-NI-V2108 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Innovasic, Inc. is a U.S.-based semiconductor and embedded systems company specializing in deterministic real-time communication solutions for industrial and critical infrastructure applications.

The RAPID-NI-V2108 belongs to the RapID Platform family, engineered to accelerate deployment of interoperable, standards-compliant industrial Ethernet devices with integrated protocol stacks and REM-based remote management capabilities.

FAQ

What is the primary function of the RAPID-NI-V2108?

The RAPID-NI-V2108 is a fully integrated network interface module that provides dual-port 10/100 Ethernet connectivity, embedded TCP/IP and UDP protocol stacks, REM Switch remote management, and host communication via UART or 16-bit parallel interface. It is not a standalone IC but a complete subsystem-level module with on-board Flash, RAM, PHYs, and isolation - enabling rapid integration into industrial edge devices without developing low-level networking firmware.

Does the RAPID-NI-V2108 require external reset circuitry?

The RAPID-NI-V2108 includes an on-board TC1270A voltage supervisor (U2), so external reset generation is optional. If used, MAN_RESET_N (X1-B8) must be driven low for ≥10 µs. When unused, the module initializes autonomously after power stabilization. RESET_OUT_N (X1-B16) provides visibility into the internal reset state, going low during active reset - useful for host synchronization and system-level fault detection in the RAPID-NI-V2108 design.

Can the RAPID-NI-V2108 operate with only UART host interface enabled?

Yes - the RAPID-NI-V2108 supports UART-only operation using X1-C3 (TX) and X1-C4 (RX). In this mode, UIC1_16 and UIC1_0 serve exclusively as UART signals; no parallel interface signals are required or active. The module's firmware automatically detects and configures the UART interface upon power-up if parallel control lines remain unasserted, making the RAPID-NI-V2108 suitable for microcontroller-based hosts with limited GPIO resources.

What is the role of CHASSIS GND on pin X1-C10 in the RAPID-NI-V2108?

CHASSIS GND on X1-C10 provides dedicated isolated grounding for Ethernet line-side components, enhancing noise immunity and meeting EMC requirements in electrically noisy industrial environments. It is physically separated from signal ground (X1-C1/X1-C9) and must be connected to the system chassis or shielded enclosure - not to digital ground - to maintain galvanic isolation between the RAPID-NI-V2108's Ethernet PHYs and host logic, preserving signal integrity and safety compliance.

How is firmware updated on the RAPID-NI-V2108 in the field?

Firmware updates for the RAPID-NI-V2108 can be performed remotely via its built-in Bootloader using .load files transferred over Ethernet - enabling zero-touch field upgrades without physical access. Alternatively, JTAG (.elf files) or offline flash programming (.srec files) may be used during manufacturing or service. All methods support independent updating of Boot Loader, Unified Interface, Network Stack, and Configuration Data components - ensuring robust, modular maintenance of the RAPID-NI-V2108 throughout its operational lifecycle.