Product Core Brief

• Model: MVME2434
• Brand: Motorola (Emerson)
• Series: MVME2400 VME Processor Module
• Core Function: Provides high-performance computing and control for VMEbus-based industrial and embedded systems.
• Product Type: VME Single Board Computer (SBC)
• Key Specs: PowerPC 750 @ 400 MHz | 256 MB ECC SDRAM | Dual PMC Slots | VME64
• Condition: New Original (New Surplus)

Product Introduction

The is a high-performance VME processor module belonging to the MVME2400 series. It is engineered to deliver the computational power of Motorola’s PowerPlus II architecture within a single VME slot, making it ideal for demanding embedded and industrial applications.

At its heart is a 400 MHz PowerPC 750 microprocessor, supported by 256 MB of ECC SDRAM and a 1 MB backside L2 cache. The features two PCI Mezzanine Card (PMC) slots, offering exceptional flexibility for I/O expansion and customization without requiring a custom base board. Its VME64 interface ensures seamless integration into existing VME backplanes while providing enhanced bandwidth for modern system requirements.

Key Technical Specifications

Quality Control Process (Engineer’s Perspective)

We don’t just box these and ship them. Here is our actual bench test workflow.

1. Incoming Verification: We verify the serial number against Motorola/Emerson traceability records. A visual inspection checks for bent pins on the VME64 P1/P2 connectors and ensures the PMC slot guides are intact.
2. Live Functional Test: We mount the unit in a live VME64 test chassis. We verify the PowerPC 750 boots correctly, initializes the 256 MB ECC SDRAM, and recognizes both PMC slots.
3. Bus Integrity Test: We perform a VMEbus arbitration and data transfer test to confirm the module meets VME64 timing specifications without bus errors.
4. Peripheral Verification: We test the 10/100 Ethernet interface and serial debug port to ensure all onboard I/O is fully functional.
5. Final QC & Packaging: The module is sealed in an anti-static bag with silica gel. A QC sticker showing the test date and technician initials is applied to the exterior.

Replacement Pitfall Guide

Field replacements on VME systems are unforgiving. Watch out for these traps.

1. Firmware/Boot Image Mismatch: ❗ Critical. A new may have a different firmware revision or boot monitor than your existing system. The VME system may fail to boot or recognize the module. Always verify firmware compatibility and be prepared to flash the correct boot image.
2. PMC Card Compatibility: ❗ Critical. The has two PMC slots. If you are migrating from an older MVME2400 variant, ensure your existing PMC cards are compatible with the PowerPC 750 @ 400 MHz and the ‘s PCI bridge. Some older PMCs may not be recognized.
3. While is backward compatible, verify your backplane supports the 5-row P1/P2 connectors. Forcing a card into a 3-row VME32 slot will damage the connector.
4. Memory Configuration: The typically ships with 256 MB ECC SDRAM. If your application requires a specific memory map or size, verify the onboard configuration jumpers or EEPROM settings match your system’s requirements.
5. ESD Damage: The PowerPC 750 and PCI bridge are highly sensitive to electrostatic discharge. Always wear a grounded wrist strap when handling the bare PCB. I’ve seen modules fail bench testing because they were handled on a dry winter day without protection.

Keep these in mind and you’ll cut 90% of rework time.

Compatibility Matrix & Benchmarks

Compatibility

• Motorola → -01xx : Direct Replacement — Verify firmware and PMC compatibility.
• Motorola MVME2400 → : Upgrade Path — is a higher-spec variant; verify backplane and PMC compatibility.

Benchmarks

• Boot Time: < 10 s (from power-on to OS handoff)
• Transfer Rate: Up to 80 MB/s (sustained block transfer)