MVME162P-242E | Basic Information (Motorola/Emerson) I. Basic Information

Model: MVME162P-242E (MVME162P242E)

Brand: Motorola / Emerson / Abaco Systems

Series: MVME162P (P=Performance, Compact High-Performance 6U VME SBC)

Form: 6U VME dual high single-board computer

Positioning: 25 MHz 040 (with floating point), 16MB, dual Ethernet, 4× serial ports, 2× IP, no SCSI, industrial-grade high-end compact version

II. Core Hardware (The biggest difference from 242: 16MB memory)

CPU: MC68040, 25 MHz

32-bit, 8KB cache, MMU, FPU (hardware floating point)

DRAM: 16MB (parity check) (242 is 4MB)

SRAM: 128KB (battery backup, power-off retention)

Flash: 1MB (162Bug firmware)

RTC/NVRAM: 8K×8, battery backup clock

In one sentence: 242E = 242 + 12MB memory (4MB → 16MB), other things are the same.

III. Built-in I/O (Exactly the same as 242)

✅ Dual 10Mbps Ethernet (DMA)

✅ 4× Serial ports (EIA-232-D, time-sharing)

✅ 2× IndustryPack (IP) expansion slots (with DMA)

✅ 6× 32-bit timers + watchdog

❌ No SCSI interface

IV. Bus and Mechanical/Environmental

Bus: VMEbus A32/D64, master/slave, system controller

Size: 6U VME (233.4 × 160 mm)

Power supply: +5V, typical 3.0A

Operating temperature: 0°C ~ +70°C (industrial standard)

V. 242 vs 242E (Easy to distinguish at a glance)

MVME162P-242: 4MB DRAM, 2IP, dual network, with floating point, no SCSI

MVME162P-242E: 16MB DRAM, 2IP, dual network, with floating point, no SCSI

E = Enhanced (Enhanced version), only the memory increases from 4MB to 16MB.

VI. Typical Applications

Industrial control requiring floating point + dual network + 2IP + larger memory (16MB)

Budget-sensitive VME system, no SCSI, but requires more memory than 4MB

Real-time control, data acquisition, lightweight algorithms, redundant network system

VII. Compatibility and Replacement

Interchangeable with the same model: MVME162P-242E / 242LSE / 242

Upward compatible: MVME162-223/530/743/853/863 (note the number of IPs)