I. Basic Information

Model: MVME162-220

Brand: Motorola / Emerson (now Schneider)

Form: 6U dual high VME64 SBC

CPU: MC68040 @ 25 MHz (✅ with FPU floating-point coprocessor, MMU, 8KB Cache)

Key Features: 4MB DRAM, 128KB SRAM, 1MB Flash, 2×IP, 4×Serial Port, ✅SCSI, ✅10Mbps Ethernet, ✅Hardware FPU

II. Hardware Specifications (Key Point: 68040 with FPU)

1) Processor (220's main difference: hardware floating point)

MC68040, 25 MHz

✅ Built-in FPU floating point coprocessor (supports high-precision floating point operations)

✅ MMU + 8KB instruction/data cache

210/212/213/216 are LC040 without FPU; 211 is 040 with FPU (but 211 has no network port)

2) Memory (Same as 213/210/211)

DRAM: 4 MB (parity check)

SRAM: 128 KB (battery backup)

Flash: 1 MB

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

3) I/O Interfaces (Same as 213: network port + SCSI dual controller)

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

Ethernet: ✅ 10 Mbps (AUI/BNC) + DMA

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

SCSI: ✅ Narrow SCSI 50-pin + DMA

IP Slot: 2×IndustryPack

Parallel Port: None

4) Electrical / Environmental

Power Supply: +5 V @ 3.5 A

Operating Temperature: 0 ℃ ~ +70 ℃

Size: 233 × 160 mm

III. Ultimate Comparison of 210/211/212/213/216/220 (At a Glance) Table

Model CPU FPU DRAM SRAM SCSI Ethernet IP Slot Position 210 LC040 ❌ 4MB 128KB ✅ ❌ 2 4MB+SCSI

211 040 ✅ 4MB 128KB ✅ ❌ 2 4MB + Floating Point + SCSI (without network port)

212 LC040 ❌ 4MB 128KB ❌ ✅ 2 4MB + Network port

213 LC040 ❌ 4MB 128KB ✅ ✅ 2 4MB + Network + SCSI (mainstream)

216 LC040 ❌ 8MB 512KB ✅ ✅ 2 8MB + Network + SCSI (high-end memory configuration)

220 040 ✅ 4MB 128KB ✅ ✅ 2 4MB + Network + SCSI + Floating Point (top-end computing)

Four, Core Features of 220

Unique "Network + SCSI + FPU" integration: Models in the 200 series that simultaneously feature Ethernet, SCSI hard drives, and hardware floating-point capabilities, without the need for trade-offs

Strong computing power of hardware floating-point: 68040 + FPU, supporting 32/64-bit floating-point operations, suitable for PID control, signal processing, motion control, and simulation algorithms

Comprehensive interface compatibility: The same as 213 interface definition, can be directly replaced with 213, and software only needs to enable floating-point support, the old system upgrade is the first choice

Five, Typical Applications

Floating-point-intensive control: Motion control, robots, industrial automation (requires high-precision PID / trajectory calculation)

Signal processing / data acquisition: Vibration analysis, spectrum analysis, sensor data floating-point operations

213/211 Upgrade: The original 213 requires floating-point, or the original 211 requires network port, directly replace with 220

High-end configuration of VxWorks real-time system: Multi-tasking + floating-point algorithms + networking + local storage, one-stop complex control