MVME1603‑042 6U VME Single‑Board Computer (SBC) Motorola / Emerson / Curtiss‑Wright User Manual (Plain Text, No Tables, No Images) Part Number: MVME1603‑042 Manufacturer: Motorola Computer Group, later Emerson / Artesyn / Curtiss‑Wright Form Factor: 6U double‑high VMEbus, VME64 compliant, P1/P2 backplane interface, VMEbus Revision C compatible Processor: PowerPC 603 RISC @ 66 MHz Memory: 8 MB non‑ECC DRAM (not expandable without module change) Key Attributes: Extended temperature (−40 °C to +70 °C), Class 3 conformal coating, ruggedized components, MVME760 transition module compatible Baseboard: MVME1600‑011 (revised P2 routing for MVME760) Mezzanine: PM603 processor mezzanine + RAM104‑002 memory module 1. General Description The MVME1603‑042 is a ruggedized, extended‑temperature single‑board computer in the MVME1603 family, designed for harsh industrial, outdoor, and military embedded applications. It is functionally equivalent to the MVME1603‑012 but upgraded for extreme environmental conditions. The board uses a modular construction consisting of a MVME1600‑011 baseboard, a PM603 PowerPC 603 processor mezzanine, and a RAM104‑002 8 MB non‑ECC DRAM module. It provides a high‑performance VMEbus SBC with integrated I/O, PCI local bus, and PMC expansion capability, optimized for cost and ruggedness. The MVME1603‑042 includes 2 KB of battery‑backed CMOS SRAM, a battery‑backed real‑time clock (RTC), and four 32‑pin ROM/EPROM/EEPROM sockets supporting up to 4 MB of firmware storage. PPCBug firmware is factory‑installed. Onboard peripherals include four EIA‑232‑D serial ports, one Centronics‑compatible parallel port, 10/100 Mbps Ethernet, a 32‑bit 33 MHz PCI local bus, and one PMC expansion slot. The VMEbus interface supports master, slave, and system controller functions with VME64 protocol compliance. 2. Features Processor and Memory PowerPC 603 RISC microprocessor operating at 66 MHz On‑chip cache: 16 KB instruction cache, 16 KB data cache 8 MB non‑ECC DRAM (soldered, non‑expandable) 2 KB battery‑backed CMOS SRAM for non‑volatile data Battery‑backed real‑time clock (RTC) with calendar Four 32‑pin ROM/EPROM/EEPROM sockets (up to 4 MB total) Factory‑installed PPCBug firmware/debug monitor Onboard I/O Interfaces Four EIA‑232‑D asynchronous/synchronous serial ports (Z8530 SCC) One Centronics‑compatible parallel printer port One 10/100 Mbps Ethernet controller (PCI‑based) 32‑bit, 33 MHz PCI local bus (132 MB/s maximum throughput) One PMC (PCI Mezzanine Card) expansion slot VMEbus interface: VME64, Revision C compliant, master/slave/system controller Ruggedization and Environmental Specifications (‑042 Specific) Operating temperature range: −40 °C to +70 °C Storage temperature range: −55 °C to +85 °C Relative humidity: 5% to 95%, non‑condensing Conformal coating: Class 3 (harsh environment protection) Extended‑grade components for wide temperature operation Enhanced shock and vibration screening for industrial and military use System Functions Two 16‑bit programmable tick timers Hardware watchdog timer with system reset capability Front‑panel LEDs: SCON, RUN, FAIL, STATUS, PCI ACT Front‑panel switches: RESET, ABORT Configuration: Factory default (MVME1600‑011 baseboard + 8 MB non‑ECC DRAM) 3. Electrical Specifications Power supply: +5 VDC, ±12 VDC (VMEbus standard) +5 V current: 5.5 A typical, 7.0 A maximum +12 V current: 150 mA maximum −12 V current: 150 mA maximum Logic levels: 3.3 V / 5 V TTL compatible Power dissipation: Approximately 11 W typical Cooling airflow: 5 CFM minimum for full‑temperature operation 4. Mechanical Specifications Form factor: 6U double‑high VMEbus module Dimensions: 233.4 mm (height) × 160 mm (depth) Weight: Approximately 850 grams Conformal coating: Class 3 (covers all components and solder joints) 5. Supported Operating Systems VxWorks (PowerPC versions, fully supported) LynxOS OS‑9 pSOS+ Motorola VMEexec NetBSD/mvmeppc Custom embedded real‑time operating systems 6. Compatibility Pin‑compatible with MVME1603‑001, ‑002, ‑011, ‑012 Software‑compatible with MVME1600 family (PowerPC 603/604) MVME760 transition module compatible Not compatible with MVME147/148 (68k architecture, different pinout) 7. Ordering Information Part Number: MVME1603‑042 Description: 6U VME SBC, PowerPC 603 @66 MHz, 8 MB non‑ECC DRAM, extended temperature −40 °C to +70 °C, Class 3 conformal coating, MVME760 compatible