Product Core Brief
- Model: MVME162-512A
- Brand: Motorola
- Series: VME Embedded Controller
- Core Function: Provides high-reliability processing and control for VMEbus-based instrument and automation systems.
- Product Type: VME Single Board Computer (SBC)
- Key Specs: MC68040 @ 32 MHz | 512KB Battery-Backed SRAM | 4 IndustryPack Slots | VME64
- Condition: New Original (New Surplus)
Product Introduction
The is a high-performance embedded controller designed for mission-critical applications in industrial automation, scientific instrumentation, and aerospace. Built on the robust MC68040 microprocessor architecture, it delivers reliable computing power within a standard 6U VME form factor.
This specific -512A variant is distinguished by its 512KB of battery-backed SRAM, ensuring data integrity during power failures. The board features four IndustryPack (IP) mezzanine slots, offering exceptional I/O expansion flexibility without consuming additional VME slots. With support for VxWorks and Linux, and equipped with onboard Flash and diagnostic firmware (162Bug), the is a proven workhorse for legacy system maintenance and upgrades.
Motorola MVME162-512A
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | VME Single Board Computer |
| Processor | MC68040 @ 32 MHz (with FPU & MMU) |
| Memory | 512KB Battery-Backed SRAM |
| DRAM | 4MB, 8MB, or 16MB (Configurable) |
| Storage | 1MB Flash, 8K x 8 NVRAM with Battery |
| Expansion | 4x IndustryPack (IP) Slots |
| Onboard I/O | Dual Serial (EIA-232), Optional Ethernet & SCSI |
| Bus Interface | VMEbus (A16/A24/A32, D8/D16/D32) |
| Timers | 6x 32-bit Timers + Watchdog |
| Operating Temp | 0°C to +55°C (Standard Industrial) |
Quality Control Process (Engineer’s Perspective)
We don’t just box these and ship them. Here is our actual bench test workflow.
- Incoming Verification: We verify the serial number against Motorola traceability records. A visual inspection checks for bent pins on the VME P1/P2 connectors, ensures the IndustryPack slot guides are intact, and verifies the SRAM/NVRAM batteries are present and not corroded.
- Live Functional Test: We mount the unit in a live VME test chassis. We verify the MC68040 boots correctly, initializes the DRAM, and recognizes all four IndustryPack slots and onboard serial ports.
- Memory Integrity Test: We run diagnostic routines on the 512KB SRAM and NVRAM to confirm battery backup functionality and data retention after a power cycle.
- Bus & Peripheral Test: We perform VMEbus arbitration tests and verify the optional Ethernet/SCSI interfaces (if equipped) are fully operational.
- 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.
Motorola MVME162-512A
Replacement Pitfall Guide
Field replacements on VME systems are unforgiving. Watch out for these traps.
- Battery Failure: ❗ Critical. The 512KB SRAM and NVRAM rely on backup batteries. On surplus boards, these batteries may be dead. Always test battery voltage and replace if necessary before installation to prevent data loss or boot failures.
- IndustryPack Module Compatibility: ❗ Critical. The has four IP slots. Ensure your existing IndustryPack modules are compatible with the MC68040 architecture and the IPChip2 interface. Some older IP modules may not be recognized.
- DRAM Configuration: The board supports 4MB, 8MB, or 16MB DRAM via expansion modules. Verify that the installed DRAM matches the jumper settings and that the boot firmware is configured for the correct memory size.
- VMEbus Address Conflicts: Ensure the VMEbus base address and interrupt levels do not conflict with other cards in the chassis. The uses jumpers for address configuration; verify these match the original card.
- ESD Damage: The and VMEbus ASICs 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
- rola 12A : Direct Replacement — Verify battery health and DRAM configuration.
- Moto12 → : Upgrade Path — The -512A adds 512KB SRAM; verify software compatibility with increased memory.
- Motorol67 → : Migration Path — Different processor architecture (68040 vs 68030); requires full system re-validation.
Benchmarks
- Boot Time: < 30 s (from power-on to VxWorks handoff, typical)
- VMEbus Transfer Rate: Up to 40 MB/s (D32 block transfer, @ 32 MHz)
