Renesas 89H12NT12G2ZAHLGI8

Overview

89H12NT12G2ZAHLGI8 from IDT is an evaluation board (EB-LOGAN-19) designed for the PES12NT12G2 PCIe Gen2 12-lane, 12-port switch - supporting PCIe Base Specification 2.1, x1/x2/x4 link width negotiation, automatic lane reversal, and NTB multi-root configurations. It enables hardware validation of fan-out switching in server/storage interconnects.

For engineers reviewing the 89H12NT12G2ZAHLGI8 datasheet, 89H12NT12G2ZAHLGI8 pinout, 89H12NT12G2ZAHLGI8 application, or 89H12NT12G2ZAHLGI8 equivalent, this page delivers verified board-level specifications, clocking configuration options, power-up sequencing, SMBus/JTAG interface access, and adapter-based PCIe topology testing capabilities.

Technical Context

The 89H12NT12G2ZAHLGI8 evaluation board implements full hardware bring-up support for the PES12NT12G2 switch, including configurable global reference clocks (100/125 MHz), local port clocking via SATA or onboard ICS841484 generator, and dual-clock-domain operation compliant with PCIe Common Clock and Non-Common Clock modes.

It integrates five dedicated voltage regulators (VDDCORE = 1.0 V, VDDPEA = 1.0 V, VDDPETA = 1.0 V, VDDPEHA = 2.5 V, VDDIO = 3.3 V), a heatsink-fan thermal solution, push-button warm reset, and JTAG header (J16) directly connected to PES12NT12G2 TAP signals - all aligned with IDT's device user manual and AN-715 clocking guidelines.

Key Specifications

Availability

89H12NT12G2ZAHLGI8 is available at Aetrix Electronics and suitable for PCIe switch validation, server storage interconnect prototyping, and multi-root NTB system development requiring stable component supply and traceable sourcing.

Supply support for 89H12NT12G2ZAHLGI8 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) is a fabless semiconductor company specializing in timing, memory interface, RF, and PCIe interconnect solutions, acquired by Renesas Electronics in 2019.

The 89H12NT12G2ZAHLGI8 belongs to IDT's EB-LOGAN series of evaluation platforms, purpose-built to accelerate validation of their PCI Express Inter-Domain Switch family - targeting high-performance server, storage, and embedded computing applications.

FAQ

What is the primary function of the 89H12NT12G2ZAHLGI8 evaluation board?

The 89H12NT12G2ZAHLGI8 evaluation board is a hardware platform designed specifically to evaluate the PES12NT12G2 PCIe Gen2 12-port switch. It provides full electrical access to all 12 lanes, configurable clocking (global and local port), regulated power delivery, JTAG debugging, and SMBus control - enabling engineers to validate switch partitioning, NTB operation, link training, and topology flexibility before system integration.

Does the 89H12NT12G2ZAHLGI8 support PCIe Gen3 or higher speeds?

No. The 89H12NT12G2ZAHLGI8 is designed exclusively for the PES12NT12G2 switch, which complies only with PCIe Base Specification Revision 2.1 (Gen2, 5 GT/s). It does not support Gen3 (8 GT/s) or higher data rates, nor is it compatible with switches from IDT's later PESxxNTxxG3 or PESxxNTxxG4 families.

Can the 89H12NT12G2ZAHLGI8 be used with the PES24NT24G2 switch?

No. The 89H12NT12G2ZAHLGI8 is the part number for the EB-LOGAN-19 board configured for the 12-port PES12NT12G2 device. While the physical EB-LOGAN-19 board design accommodates multiple switches (including PES24NT24G2 and PES16NT16G2), the 89H12NT12G2ZAHLGI8 variant is specifically calibrated, populated, and documented for PES12NT12G2 - with matching jumper defaults, clock routing, and power settings.

What clock sources are supported on the 89H12NT12G2ZAHLGI8 board?

The 89H12NT12G2ZAHLGI8 supports three global reference clock sources: external differential clocks via SMA connectors (J17/J20/J66/J67), onboard ICS841484 generator (U49, fixed 100 MHz output), or SATA connectors (J21/J22). All require dual-clock input at either 100 MHz or 125 MHz, selected via SW10[2] and S10[1] DIP switches per IDT's clocking architecture.

Is software required to operate the 89H12NT12G2ZAHLGI8 evaluation board?

No standalone firmware runs on the 89H12NT12G2ZAHLGI8 board. However, IDT provides host-side software tools - including Windows/Linux GUI register editors and binary EEPROM generators - that communicate with the PES12NT12G2 via PCIe config space or SMBus. These tools enable real-time register read/write, boot vector programming, and link status monitoring during evaluation.