MOTOROLA MVME162-213 Double Height 6U VMEbus Single Board Computer MC68LC040 25MHz 32-bit Embedded Controller

Manufacturer Background: Original Motorola Embedded Computing, legacy 68K architecture VME SBC series before PowerPC MVME5500/6100 platform. MVME162-213 is classic double-height 6U VME industrial single board computer built around MC68LC040 32-bit CPU, widely deployed in legacy power plant DCS, radar control, railway interlock, shipboard automation, military ground test systems. Compliant with IEEE 1014 VMEbus standard, supports full VME master/slave system controller function, long-term stable operation for legacy mission-critical embedded equipment, compatible with VxWorks, OS-9 real-time operating systems.

Part Number Breakdown: MVME162-213 - MVME: Motorola unified prefix for VME single board computer - 162: Classic 68040 CPU double-height VME SBC base platform - 213: Fixed hardware configuration suffix: 25MHz MC68LC040, 4MB parity DRAM, 1MB onboard Flash, 512KB battery-backed SRAM, 10Base-T Ethernet + SCSI-2 integrated Comparative models: MVME162-203 (1MB DRAM without SCSI), MVME162-223 (8MB DRAM wide temp coated version)

Product Type: Double-height 6U VMEbus single board computer, non hot-swap legacy VME design; onboard MC68LC040 25MHz 32-bit microprocessor with integrated MMU and 8KB cache (no FPU); 4MB parity-protected DRAM, 512KB battery-backed SRAM, 1MB soldered Flash storage; integrated VMEchip2 VME bus controller, onboard 10Base-T Ethernet transceiver, SCSI-2 DMA storage interface, three EIA-232-D serial ports, six programmable tick timers + watchdog timer, battery-backed TOD real-time clock, full front panel I/O breakout, optional conformal coated rugged variant for extended temperature range.

Matching System Components: Standard double-height 6U VME chassis, IEEE1014 VME backplane A16/A24/A32; VME industrial power supply +5V / ±12V; PMC/mezzanine memory expansion daughter boards; VxWorks / OS-9 real-time OS; serial console cables, 10Base-T Ethernet cable, SCSI storage cable; replaceable lithium backup battery for SRAM/RTC; legacy VME analog/digital I/O modules.

Core Hardware Overview: 1. Processor & Cache Architecture - CPU: Motorola MC68LC040 32-bit CISC, core clock 25MHz - Integrated Memory Management Unit (MMU), 8KB unified instruction/data cache - No floating-point arithmetic unit (FPU); MC68040 variant optional for floating-point calculation - VME Bridge Controller: VMEchip2, supports A16/A24/A32 address, D8/D16/D32 data width, burst DMA transfer 2. Memory Subsystem - DRAM: 4MB parity-protected dynamic RAM, expandable to max 8MB via memory mezzanine - SRAM: 512KB non-volatile static RAM with lithium battery backup, preserves configuration/log data during full power loss - Flash Storage: 1MB soldered NOR Flash for firmware, bootloader and application program storage - RTC/Timer: Battery-backed Time-of-Day clock, 6 independent programmable tick timers + hardware watchdog timer for system crash recovery 3. Bus & Onboard Peripheral Interfaces - VMEbus: IEEE1014 standard, full master/slave mode, system controller arbitration, round-robin/priority interrupt handling - Ethernet: Integrated 10Base-T 10Mbps Ethernet transceiver with DMA controller - SCSI-2: Onboard DMA SCSI-2 interface for external hard disk/tape storage - Serial Ports: 3× EIA-232-D (RS232) serial interfaces: 1 dedicated console port, 2 general communication ports, max baud rate 38400bps 4. Mechanical & Environmental Ratings - Form Factor: Double-height 6U VME, dimension 233.4mm × 160mm, single slot occupation - Power Consumption: Typical 6W @ +5V, peak max 22W with full peripherals loaded - Operating Temperature: Standard version 0 ~ +70°C; rugged coated variant -40 ~ +85°C - Storage Temperature: -55°C ~ +125°C - Humidity: 5%~95% RH non-condensing - Vibration & Shock: IEC 60068 industrial marine standard, ESD ±8kV HBM protection

1. Product Overview

MVME162-213 is Motorola classic legacy 68K architecture double-height 6U VME single board computer, widely used in early generation industrial distributed control and military embedded systems before PowerPC platform release. Equipped with MC68LC040 25MHz 32-bit processor, integrated parity DRAM, battery-backed SRAM and large-capacity onboard Flash, it can independently run real-time operating systems without additional memory expansion boards. Integrated three serial ports, 10Mbps Ethernet and SCSI-2 storage interface realize multi-channel data communication and local mass storage functions, meeting the data interaction and program storage demands of early DCS, radar signal processing and railway interlock equipment. VMEchip2 bus controller supports complete VME master/slave and system controller functions, can act as rack main control node to schedule all slave I/O modules on VME backplane. Built-in hardware watchdog timer and battery-backed real-time clock ensure automatic system reset after program crash and accurate time stamp for fault logs; parity memory effectively detects internal RAM data errors to avoid abnormal control output. Optional wide-temperature conformal coated version supports stable operation in shipboard, outdoor and explosion-proof cabinet harsh environments, compatible with all legacy 68K VME software and firmware, the mainstream spare replacement board for old VME control rack renovation projects.

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