The Emerson/Motorola MVME172PA-652SE is a VMEbus embedded controller purpose-built for demanding industrial control and real-time processing applications. It combines a Motorola MC68060 or MC68LC060 superscalar processor with configurable SDRAM, battery-backed SRAM, and dual IndustryPack slots to deliver flexible I/O expansion. The architecture maintains MC68000 object code compatibility while offering 60 MHz or 64 MHz clock speeds and Petra ASIC memory subsystem enhancement.
## Technical Specifications
**Processor & Clock**
• Motorola MC68060 or MC68LC060 superscalar RISC processor
• Clock speeds: 60 MHz or 64 MHz
**Memory Subsystem**
• SDRAM: 16 MB configurable with optional ECC; 4-1-1-1 read burst, 2-1-1-1 write burst
• SRAM: 128 KB with lithium battery backup
• Flash: 2 MB
• NVRAM: 8 KB × 8 with battery backup
• EPROM: Two 32-pin JEDEC DIP sockets
**VMEbus Interface**
• ANSI/VITA 1-1994 VME64 (IEEE STD 1014), 16/32-bit data width
• RR/PRI arbiter, IRQ 1–7 interrupt handler, IRQ 1–7 interrupt generator
• Jumperable system controller
**I/O & Expansion**
• Two 32-pin IndustryPack ports with one DMA channel per slot
• Four asynchronous serial ports (EIA-232-D DTE) with RJ-45 connectors
• Ethernet interface (i82596CA controller)
• SCSI interface (53C710 co-processor)
• Six 32-bit timers including watchdog
• Battery-backed time-of-day clock
**Physical & Environmental**
• Dimensions: 233.4 mm H × 160.0 mm D × 19.8 mm W (front panel 261.8 mm)
• Operating temperature: 0° to 55° C with forced air cooling (100 CFM typical)
• Storage temperature: -40° to +85° C
• Humidity: 5% to 90% non-condensing
• PWBs: UL 94V-0 flammability rating
**Firmware**
• 16XBug on-board debugger and diagnostic firmware
## Key Features
• Dual IndustryPack logic interface for embedded monitoring and control
• Battery-backed time-of-day clock and NVRAM for data retention
• Petra ASIC enhances memory subsystem performance
• Four serial ports enable multi-device connectivity
• Integrated Ethernet and SCSI co-processor support
## Typical Applications
• Industrial process control and automation
• Real-time embedded systems
• VMEbus-based data acquisition and monitoring
• Systems requiring legacy MC68000 code compatibility
## Compatibility & Integration
• Supports MC68000 object code compatibility
• Compatible with wide range of real-time kernels and embedded operating systems
