I. Basic Information

Model: MVME162-210

Brand: Motorola / Emerson (now part of Schneider)

Form: 6U VME64 single-board computer (SBC), single-height

CPU: MC68LC040 @ 25 MHz (❌ No FPU, ✅ MMU, 8KB Cache)

Key Features: 4MB DRAM, 128KB SRAM, 1MB Flash, 2×IP, 4×Serial Port, ✅ SCSI, ❌ Ethernet

II. Core Hardware Specifications (Compared with 200/201/202)

1) Processor

MC68LC040, 25 MHz

❌ No FPU (only integer), MMU + 8KB unified cache

Performance: ≈ 15 MIPS (same as 200 series)

2) Memory (Key Upgrade)

DRAM: 4 MB (parity, interleaved) (200 series was 1MB)

SRAM: 128 KB (battery backup) (200 series was 512KB)

Flash: 1 MB

NVRAM/RTC: 8 KB + real-time clock (battery backup)

3) I/O Interfaces (New SCSI, No Network)

VMEbus: VME64 A32/D32, master/slave, DMA, system controller

Ethernet: ❌ No onboard network port (same as 200 series)

Serial Port: 4×RS-232 (Console + 3× configurable)

SCSI: ✅ Narrow SCSI (50-pin) + DMA (200 series has none)

IP Slot: **2×IndustryPack (IP) ** expansion slots

Parallel Port: None

4) Electrical / Environmental

Power Supply: +5 V @ 3.5 A (same as 200 series)

Operating Temperature: 0 ℃ ~ +70 ℃

Size: 233 × 160 mm

III. 200/201/202 vs 210 at a Glance Table

Model Processor DRAM SRAM SCSI Network Port IP Slot 200/201/202 LC040/25MHz 1MB 512KB ❌ ❌ 2

210 LC040/25MHz 4MB 128KB ✅ ❌ 2

IV. Functional Features

200 Series "Memory + Storage Enhanced Version": 4MB of memory suitable for multitasking, SCSI capable of connecting hard drives / CD-ROMs, no network dedicated for local control

Retain 2IP + 4 serial ports: The expansion capability is the same as that of the 200 Series, and IP modules can be inserted to supplement I/O

Integer operations, low power consumption: No FPU, suitable for industrial scenarios without floating-point operations and requiring local storage

V. Typical Applications

VME control with local storage: SCSI connected to hard drives, running embedded OS (VxWorks/OS-9)

Multiple serial ports + multi-tasking acquisition: 4 serial ports + 4MB of memory, simultaneously processing data from multiple devices

200 Series Upgrade (requires SCSI): The old 1MB board is insufficient and requires local storage. Simply replace with 210