MVME162‑223 (Motorola/Emerson, 68040 with FPU, 4MB, dual high, network + SCSI dual full, full interface flagship)

Position: MVME162‑200 "220 dual high full interface version, 213 floating point + dual high upgrade version" - The official mass production version of the same configuration as 220 (dual high + FPU + network + SCSI), which is also the only "dual high + FPU + 4 serial ports + network + SCSI + 2 IP" full-function top-level model of the 200 series, used for industrial control / military / aviation and other scenarios requiring strong floating-point + full interface + high reliability. 1. Basic Information

Model: MVME162‑223

Brand: Motorola / Emerson (now Schneider)

Form: 6U dual high VME64 SBC (same as 220/222, more stable than 213/216)

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

Core Features: 4MB DRAM, 128KB SRAM, 1MB Flash, 2×IP, 4× serial ports,✅ SCSI,✅ 10Mbps Ethernet,✅ hardware FPU, dual high

II. Hardware Specifications (Key points: Dual High + FPU + Network + SCSI + 4 Serial Ports, no weaknesses)

1) Processor (Same as 220: Hardware Floating Point, 213/216/222 do not have)

MC68040, 25 MHz

✅ Built-in FPU Floating Point Coprocessor (32/64-bit Floating Point, necessary for PID / Signal Processing)

✅ MMU + 8KB Instruction / Data Cache

210/212/213/216/222 are LC040 without FPU; 211 has FPU but only Dual High + no network interface

2) Memory (Same as 220/213/222)

DRAM: 4 MB (Parity Check)

SRAM: 128 KB (Battery Backup, Data Saved in Power Failure)

Flash: 1 MB (Firmware / System Storage)

NVRAM/RTC: 8 KB + Real-Time Clock (Battery Backup)

3) I/O Interfaces (Most Comprehensive in 200 Series: Network + SCSI + 4 Serial Ports + 2 IP)

VMEbus: VME64 A32/D32, Master / Slave, DMA (Better Heat Dissipation for Dual High)

Ethernet: ✅ 10 Mbps (AUI/BNC/RJ45, Intel 82596CA) + DMA

Serial Ports: 4×RS-232 (Console + 3 Optional, Up to 115.2 kbps)

SCSI: ✅ Narrow SCSI 50 Pin (Ultra SCSI-2, 20 MB/s) + DMA

IP Slots: 2×IndustryPack (32-bit, Supports DMA)

Parallel Ports: 1×Centronics IEEE-1284 (DB-25)

4) Electrical / Environmental

Power Supply: +5 V @ 3.5 A

Operating Temperature: 0 ℃ ~ +70 ℃ (Industrial Grade, Expandable to Military Temperature Range)

Size: 233 × 160 mm (Dual High, Strong Structure, Excellent Heat Dissipation)

III. Ultimate Comparison of 210~223 (At a Glance: 223 is the Ceiling of Full Functionality) Table

Model CPU FPU DRAM SRAM SCSI Ethernet Serial Ports Form Factor Position

210 LC040 ❌ 4MB 128KB ✅ ❌ 2 Single High 4MB + SCSI

211 040 ✅ 4MB 128KB ✅ ❌ 2 Single High 4MB + Floating Point + SCSI (No Network)

212 LC040 ❌ 4MB 128KB ❌ ✅ 2 Single High 4MB + Network (2 Serial Ports)

213 LC040 ❌ 4MB 128KB ✅ ✅ 4 Single High 4MB + Network + SCSI (Mainstream Single High)

216 LC040 ❌ 8MB 512KB ✅ ✅ 4 Single High 8MB + Network + SCSI (High-End Memory)

220 040 ✅ 4MB 128KB ✅ ✅ 4 Dual High 4MB + Network + SCSI + Floating Point (Dual High Type)

222 LC040 ❌ 4MB 128KB ❌ ✅ 4 Dual High 4MB + Network Ports (Dual High Economy)

223 040 ✅ 4MB 128KB ✅ ✅ 4 Dual High 4MB + Network + SCSI + Floating Point + Dual High (Full Function Top-End)

Four, Core Features (Different from All Models)

Unique "Dual High + FPU + All Interfaces": This model in the 200 series has both dual high structure, hardware floating point, Ethernet, SCSI hard drive, and 4 serial ports, with no interface shortcomings.

220's Mass Production Optimized Version: 220 is an early prototype / small batch version. 223 is the stable production version, with better compatibility, reliability, and supply.

Preferred Direct Replacement for 213/216/220:

Replace 213: Add FPU + Dual High, doubling the floating point computing capability

Replace 216: Reduce memory (4MB → 8MB) but add FPU + Dual High, suitable for scenarios prioritizing floating point

Replace 220: Fully compatible, with stronger stability

Five, Typical Applications

Floating Point Intensive + All Interfaces Required: Motion Control, Robotics, Aerospace, Military Equipment (Requires High Precision PID / Trajectory Calculation + Networking + Local Storage)

Upgrade of 213/216 Systems: The original single high system requires floating point computing + dual high structure. Directly replace with 223, software compatibility is maintained

High Reliability VME System: Dual High Structure + Industrial Temperature Range + All Interfaces, suitable for long-term operation, low maintenance industrial sites