Description
Motorola MVME162PA-244L
Technical Specifications
- Microprocessor: 25 MHz MC68LC040 enhanced 32-bit microprocessor (includes 8KB cache and MMU, without FPU).
- Main Memory: 16MB SDRAM with parity protection.
- Non-Volatile Storage: 512KB battery-backed SRAM, 1MB Flash memory, and 8K x 8 NVRAM with battery-backed real-time clock.
- Bus Interface: A32/D64 VMEbus master/slave interface with full system controller functionality.
Functional Features
- Petra ASIC Integration: Optimizes local bus memory burst cycles and VMEbus D64 block transfers.
- IndustryPack Expansion: Supports up to four 16-bit or two 32-bit IndustryPack ports.
- Serial Communications: Features two serial ports (one EIA-232-D DCE console port and one user-configurable EIA-232-D/EIA-422 port).
- High-Performance DMA: Supports Direct Memory Access for fast local memory-to-VMEbus transfers.
Application Scenarios
Ideal for distributed control systems, industrial automation, programmable logic controller (PLC) core processing, and general-purpose data acquisition systems.
Performance Parameters
- Timers: Six 32-bit programmable tick timers and one hardware watchdog timer.
- Power Requirements: +5Vdc (±5%) at 3.5A typical, 4.5A max; +12Vdc and -12Vdc at 100mA max.
- Thermal Specifications: Operating temperature 0°C to 70°C exit air with forced-air cooling; storage temperature -40°C to +85°C.
Material Composition
Constructed using high-Tg, multi-layer industrial-grade PCBs with conformal coating, populated with high-reliability MC68LC040 processors, SDRAM modules, and the custom Petra ASIC.
Structural Characteristics
Standard 6U Double-High VME module with standard VME P1/P2 backplane connectors, front-panel status LEDs, and physical ABORT/RESET pushbutton switches.
Working Principle
The MC68LC040 processor manages the local bus and communicates with the Petra ASIC. The ASIC handles memory management, VMEbus arbitration, and DMA transfers, allowing the CPU to focus on real-time application processing.
Installation Requirements
- Must be inserted into a compatible 6U VME card cage slot and secured with front-panel screws.
- Hardware switches must be configured to match installed SDRAM capacity and boot behavior.
- Forced-air cooling is mandatory to maintain exit air temperature below 70°C.
Usage Precautions
- Always wear an anti-static wrist strap when handling the board.
- Never insert or remove the module while VME chassis power is applied.
- Periodically check and replace the backup battery to prevent NVRAM configuration loss.
