Renesas 89HPEB383ZAEMGI

Overview

89HPEB383ZAEMGI from Integrated Device Technology is a PCIe-to-PCI bridge evaluation board designed to validate the PEB383 (LQFP) bridge IC in x1 PCIe 1.1–compliant riser card applications. It supports four 32-bit PCI slots operating at 25–66 MHz, provides full PCIe 1.0V/3.3V and PCI 3.3V/5V/12V power regulation, and includes JTAG, EEPROM, GPIO, and logic analyzer debug interfaces.

For engineers reviewing the 89HPEB383ZAEMGI datasheet, 89HPEB383ZAEMGI pinout, 89HPEB383ZAEMGI application, or 89HPEB383ZAEMGI equivalent, this board enables functional validation of PCIe-to-PCI bridging, clock domain isolation, hot-plug sequencing, and multi-slot PCI bus arbitration under real system conditions.

Technical Context

The 89HPEB383ZAEMGI implements a single-lane PCIe 1.1 interface with AC-coupled TXD lanes, REFCLK input multiplexing between system edge connector and on-board 100-MHz HCSL oscillator, and configurable PERST# reset handling (cold/warm/hot). It integrates a DC/DC-based 1.0V core supply and dual-path 3.3V distribution-one for PCIe AVDD and one for PCI I/O-with EMI filtering and current sensing.

PCI bus operation supports master (PEB383-generated) or slave (external 25–66 MHz clock) modes via resistor muxes and DIP-switch-configurable PLL dividers (FBDIV_SEL/DIR_SEL). Power sequencing enforces 1.0V ramp-up before 3.3V I/O, while ATX 20-pin override disables PCIe slot power draw when external supply is present.

Key Specifications

Availability

89HPEB383ZAEMGI is available at Aetrix Electronics and suitable for PCIe-to-PCI bridge validation, multi-slot PCI system prototyping, and PCIe compliance testing requiring stable component supply and traceable engineering support.

Supply support for 89HPEB383ZAEMGI 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 (IDT) was a fabless semiconductor company specializing in timing, memory interface, RF, and interconnect solutions before its acquisition by Renesas Electronics in 2019.

The 89HPEB383ZAEMGI belongs to IDT's PEB383 evaluation platform family, engineered to accelerate development of PCIe-to-PCI bridge systems in server, storage, and industrial computing applications.

FAQ

What is the primary function of the 89HPEB383ZAEMGI evaluation board?

The 89HPEB383ZAEMGI evaluation board is a hardware platform designed to validate the PEB383 PCIe-to-PCI bridge IC. It enables engineers to test PCIe 1.1-to-PCI bridging functionality, clock domain separation, multi-slot PCI arbitration, hot-plug behavior, and power sequencing in a real-system environment-without requiring custom PCB design. The board directly supports integration with standard ATX cases and PCIe root complexes.

Does the 89HPEB383ZAEMGI support both master and slave clocking modes for the PCI bus?

Yes, the 89HPEB383ZAEMGI supports both master and slave PCI clocking. In master mode, the PEB383 IC generates the PCI clock for all four slots. In slave mode, an on-board selectable 25–66 MHz clock generator drives the bus, with configuration controlled via DIP switches S3 and S4 and resistor muxes. This flexibility allows validation of timing-sensitive PCI peripheral interoperability under varied clock source conditions.

How does the 89HPEB383ZAEMGI handle power delivery to PCI slots when used in a PCIe-only system?

The 89HPEB383ZAEMGI draws power from the PCIe x1 slot (up to 25W per CEM 1.1) and regulates it internally using 12V-to-3.3V/5V/1.0V DC/DC converters. Without external ATX supply, maximum PCI slot power is limited to ~23W (accounting for regulator efficiency). When the ATX 20-pin connector is used, the board disables PCIe slot power draw and supplies full-rated current (7.6A @ 3.3V, 5A @ 5V) to all four PCI slots independently.

What debug interfaces are accessible on the 89HPEB383ZAEMGI board?

The 89HPEB383ZAEMGI provides JTAG (J22 header), logic analyzer SerDes probe pads (J23), GPIO expansion header (J7), EEPROM programming socket (8-pin DIP), and dedicated reset pushbutton. J22 implements standard 16-pin ARM-style JTAG with TCK/TMS/TDI/TDO and 3.3V/GND. J23 exposes PCIe RXD/TXD differential pairs with ground-signal-ground routing optimized for Tektronix Mictor probes.

Can the 89HPEB383ZAEMGI be used to validate PCIe compliance and signal integrity?

Yes, the 89HPEB383ZAEMGI includes PCIe compliance features such as AC-coupled TXD lanes, mid-bus SerDes probe pads (J23), PCIe_REFCLK termination (190-Ω to GND), and PCIe_PERST# reset control with cold/warm/hot reset levels. These enable oscilloscope-based eye diagram analysis, reference clock jitter measurement, and protocol-level reset sequence verification per PCI Express Base Specification 1.1.