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MVME162-020

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MVME162-020
May 15, 2026

MVME162-020

The MVME162‑020 is a 6U single‑height VMEbus SBC (Single Board Computer) by Motorola / Emerson, based on the MC68LC040 @ 25 MHz (or optional MC68040 with FPU). It is the base model with four IndustryPack (IP) slots, no Ethernet, no SCSI, designed for high I/O flexibility via IP modules in industrial control and real‑time systems. Key position in MVME162 family: 020 = 4 × IP slots, no Ethernet, no SCSI Highest I/O expansion in MVME162 line (four single‑height IP slots) Target: systems needing many custom I/O modules (analog, digital, fieldbus, etc.)

Description

MVME162-020A.jpg

MVME162-020A（2.jpg

1. General Description

The MVME162‑020 is a 6U single‑height VMEbus SBC (Single Board Computer) by Motorola / Emerson, based on the MC68LC040 @ 25 MHz (or optional MC68040 with FPU).
It is the base model with four IndustryPack (IP) slots, no Ethernet, no SCSI, designed for high I/O flexibility via IP modules in industrial control and real‑time systems.
Key position in MVME162 family:

  • 020 = 4 × IP slots, no Ethernet, no SCSI

  • Highest I/O expansion in MVME162 line (four single‑height IP slots)

  • Target: systems needing many custom I/O modules (analog, digital, fieldbus, etc.)

2. Core Specifications

  • Processor: Motorola MC68LC040 @ 25 MHz (8 KB cache, MMU, no FPU)

    Optional: MC68040 @ 25 MHz (with FPU)

  • DRAM: 4 MB parity‑checked DRAM (expandable to 8 MB)

  • Battery‑Backed SRAM: 512 KB

  • Flash Memory: 1 MB Flash (for 162BUG firmware)

  • NVRAM/RTC: 8 KB NVRAM + Real‑Time Clock (TOD), battery‑backed

  • VMEbus: A32/D32, master/slave, system controller capable

3. Onboard Interfaces

  • IndustryPack (IP): 4 × single‑height IP slots (or 2 × double‑height)

    • Supports wide range of I/O: AI/AO/DI/DO, serial, CAN, Profibus, etc.

  • Serial Ports:

    • 1 × Console: EIA‑232‑D (DCE)

    • 1 × Configurable: EIA‑232‑D / EIA‑530 (DCE/DTE)

  • Timers: Six tick timers + watchdog timer

  • Front Panel:

    • 8 LEDs: FAIL, STAT, RUN, SCON, LAN, FUSE, SCSI, VME

    • 2 pushbuttons: RESET, ABORT

  • Not included: Ethernet, SCSI (020 = IP‑only I/O)

4. Mechanical & Environmental

  • Form Factor: 6U VMEbus, single slot

  • Operating Temperature: 0°C ~ +55°C (standard industrial)

  • Storage Temperature: ‑40°C ~ +85°C

  • Humidity: 5%–95% non‑condensing

5. Firmware & Software Support

  • Boot Monitor: 162BUG (Motorola proprietary)

  • Supported OS: VxWorks, LynxOS, OS‑9, pSOS+, VRTX, OpenBSD/mvme68k, NetBSD/mvme68k

  • Functions: POST, memory/VME mapping, serial console, IP slot mapping & configuration, watchdog control

6. MVME162 Series Comparison (Key Models)

  • 010A: 2×IP, no SCSI/Ethernet

  • 011A: SCSI‑2, no Ethernet/IP

  • 012/012A: Ethernet + 2×IP, no SCSI

  • 013/013A: SCSI‑2 + Ethernet, no IP

  • 014A: Ethernet + 2×IP, no SCSI, industrial high‑rel

  • 020: 4×IP, no Ethernet/SCSI (max I/O expansion)

7. Typical Applications

  • VMEbus systems requiring massive custom I/O (up to 4 IP modules)

  • Industrial automation & DCS with distributed analog/digital I/O

  • Real‑time control with fieldbus interfaces (via IP)

  • Legacy MVME162 systems replacing older 010A with more IP slots

8. Maintenance Notes

  • Replace onboard backup battery every 3–5 years to preserve SRAM/RTC data

  • Configure VMEbus master/slave and IP slot addressing via onboard jumpers

  • Verify IP module IDs and compatibility before power‑on


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