Renesas 89H16NT16G2ZAHLGI

Overview

89H16NT16G2ZAHLGI from IDT is an evaluation board (EB-LOGAN-19) designed for the 89HPES16NT16G2 PCIe Gen2 16-lane, 16-port switch - supporting x1/x2/x4/x8 port configurations, PCIe Base Specification 2.1 compliance, and NTB/multi-root partitioning. It enables hardware validation of fan-out switching in server and storage interconnect systems.

For engineers reviewing the 89H16NT16G2ZAHLGI datasheet, 89H16NT16G2ZAHLGI pinout, 89H16NT16G2ZAHLGI application, or 89H16NT16G2ZAHLGI equivalent, this board provides full access to all 16 PCIe lanes via mezzanine and SAS connectors, configurable clocking (100/125 MHz), SMBus-managed EEPROM boot, and JTAG debug - critical for PCIe switch integration and system-level timing validation.

Technical Context

The 89H16NT16G2ZAHLGI implements a complete hardware test platform for the 89HPES16NT16G2 switch, featuring dual differential global reference clock inputs (mandatory 100/125 MHz), local port clocking support on selected ports, and flexible CLKMODE[1:0]-controlled common/non-common clock configuration per PCI Express specification. All 16 lanes are routed to two mezzanine connectors and two iSAS connectors near the DUT.

Power delivery includes five dedicated regulators: 1.0V VDDCORE, 1.0V VDDPEA, 1.0V VDDPETA, 2.5V VDDPEHA, and 3.3V VDDIO - with strict VDDCORE ramping ≤1.0V below VDDIO. Reset architecture supports both fundamental PERST# propagation and downstream hot-reset via SMBus or push-button.

Key Specifications

Availability

89H16NT16G2ZAHLGI is available at Aetrix Electronics and suitable for PCIe switch validation, server backplane interconnect development, and storage subsystem timing analysis requiring stable component supply and full hardware debug access.

Supply support for 89H16NT16G2ZAHLGI 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

Integrated Device Technology, Inc. (IDT) was a U.S.-based semiconductor company specializing in timing, memory interface, RF, and PCIe interconnect solutions before its acquisition by Renesas Electronics in 2019.

The 89H16NT16G2ZAHLGI belongs to IDT's EB-LOGAN series of PCIe switch evaluation platforms, engineered specifically to accelerate validation of high-density, multi-root PCIe Gen2 switching in enterprise servers and storage arrays.

FAQ

What is the primary function of the 89H16NT16G2ZAHLGI evaluation board?

The 89H16NT16G2ZAHLGI is a dedicated evaluation platform for the 89HPES16NT16G2 PCIe Gen2 16-port switch. It provides full electrical access to all 16 lanes, configurable clocking, SMBus-based EEPROM programming, JTAG debugging, and physical connectivity options (mezzanine/iSAS) - enabling comprehensive hardware and firmware validation of PCIe switching behavior in real system environments.

Does the 89H16NT16G2ZAHLGI support PCIe Gen2 timing compliance testing?

Yes, the 89H16NT16G2ZAHLGI supports PCIe Gen2 timing compliance testing through its dual differential global reference clock inputs (100/125 MHz), precise clock routing to the 89HPES16NT16G2 device, onboard SMA test points (J119/J120), and configurable CLKMODE settings that enforce Common Clock or Non-Common Clock modes per PCI Express Base Specification 2.1.

Can the 89H16NT16G2ZAHLGI be used to validate NTB (Non-Transparent Bridge) functionality?

Yes, the 89H16NT16G2ZAHLGI supports NTB validation. The underlying 89HPES16NT16G2 switch allows up to eight ports to be configured as NTB ports, and the evaluation board provides full register access via GUI software and JTAG - enabling configuration, peer-to-peer memory mapping, and interrupt handling required for multi-root system testing.

What power supply requirements does the 89H16NT16G2ZAHLGI have?

The 89H16NT16G2ZAHLGI requires a 12V input via its 24-pin EPS12V connector (J69). Onboard DC-DC conversion generates five regulated voltages: 1.0V (VDDCORE, VDDPEA, VDDPETA), 2.5V (VDDPEHA), and 3.3V (VDDIO). VDDCORE must ramp no more than 1.0V below VDDIO during power-up - a constraint enforced by the board's regulator sequencing design.

Is JTAG debugging supported on the 89H16NT16G2ZAHLGI?

Yes, the 89H16NT16G2ZAHLGI includes a standard 14-pin JTAG header (J16) directly connected to the TDI/TDO/TCK/TMS/TRST# pins of the 89HPES16NT16G2 switch. This enables boundary scan testing, real-time register read/write, and low-level firmware development using industry-standard tools compatible with IEEE 1149.1.