MVME162-10 (Motorola/Emerson)

Position: Early basic model of the MVME162 series, 25 MHz, no FPU, 4MB, no network port, no SCSI; mainly focuses on low cost and basic VME control.

I. Basic Information

Model: MVME162-10

Brand: Motorola / Emerson

Form: 6U VME single-board computer (SBC)

CPU: MC68LC040 @ 25 MHz (no FPU, has MMU, 8KB Cache)

Core Position: Early basic version, no network, no SCSI, 4MB memory, simplest VME controller

II. Core Hardware Specifications

1) Processor

MC68LC040, 25 MHz

❌ No FPU (no floating-point operation); ✅ Has MMU, 8KB unified cache

Performance: Approximately 15 MIPS, only integer operation

2) Memory (Basic Configuration)

DRAM: 4 MB (parity)

SRAM: 512 KB, battery backup

Flash: 1 MB

NVRAM/RTC: 8 KB + real-time clock, battery backup

3) I/O Interfaces (Minimal: No network, no SCSI)

VMEbus: VME64 A32/D32, master/slave, DMA, system controller

Ethernet: ❌ No onboard network port (requires IP network card expansion)

Serial Port: 2×RS-232 (Console + configurable)

SCSI: ❌ No SCSI interface

IP Slot: 4×IndustryPack (IP) expansion slots

Parallel Port: 8-bit bidirectional

4) Electrical / Environmental

Power Supply: +5 V @ 3.5 A (typical)

Operating Temperature: 0 ℃ ~ +70 ℃

Size: 6U VME (233 × 160 mm)

III. Comparison between MVME162-10 and 043 (Plain Text)

10: LC040/25 MHz / No FPU/4MB/No network port/No SCSI → Early basic model, smaller memory, no network

043: LC040/25 MHz / No FPU/8MB/Single 10M network/No SCSI → Later minimalist model, doubled memory, with single network

IV. Functional Features

Ultra-simple Configuration: No FPU, no network, no SCSI, only VME, dual serial ports, 4 IP slots

Basic Performance: 4MB memory, suitable for lightweight logic control, simple data acquisition

Flexible Expansion: 4 IP slots can be used for network ports, SCSI, analog quantity, etc.

Power Failure Protection: SRAM/NVRAM/RTC battery backup

V. Typical Applications

Basic control of old VME systems: no complex algorithms, no network communication, extremely low budget

Simple main control of industrial equipment: few I/O points, simple logic, no floating-point required

Research / Teaching experimental platform: low-cost VME architecture for learning and development