Motorola  MVME320B磁盘控制器板

1.产 品 资 料 介 绍：

Motorola MVME320B VMEbus 磁盘控制器板解析

一、核心技术特性

1. 多类型存储设备适配
   支持多种存储介质接口，包括 IDE 硬盘、SCSI 设备及工业级闪存模块（如 CompactFlash），可根据应用需求选择 “大容量机械硬盘”（适配海量日志存储）或 “高可靠性闪存”（适配振动频繁的车载、工控场景），无需额外转接即可直接连接，覆盖工业场景主流存储需求。
2. 高效数据管理与防护
   集成数据读写控制、缓存管理与错误检测功能：
   • 内置高速缓存（典型容量 16KB-64KB），减少主控单元与存储设备的交互延迟，提升数据读写速度，适配 “实时日志记录”“实验数据高速存储” 等场景；
   • 支持数据校验（如 CRC 校验）与错误恢复机制，可自动检测读写过程中的数据错误并尝试修复，避免关键数据丢失，保障存储可靠性。
3. VMEbus 深度兼容与协同
   完全符合 VMEbus 标准，可作为从模块与 MVME 系列处理器模块（如 MVME-162、MVME-6100）无缝协同：
   • 通过 VME 总线接收主控单元的存储控制指令（如数据读写、设备初始化），同步反馈存储状态（如磁盘空间、读写进度）；
   • 支持 VME 中断响应，可将 “存储故障”“磁盘满” 等异常事件主动上报主控，便于系统及时触发告警或切换备用存储，避免数据存储中断。
4. 工业级环境耐受性
   采用工业级硬件设计，抗振动（适配 10-500Hz 工业振动环境）、耐高温（工作温度覆盖 0℃~60℃，部分版本支持 -20℃~+70℃ 宽温），可适应工业车间、铁路车载、户外通信基站等恶劣环境；电路设计具备抗电磁干扰能力，避免强干扰导致存储读写异常，支持 7×24 小时连续运行，满足关键系统 “无间断存储” 需求。
5. 模块化与易用性
   采用模块化布局，存储接口与控制电路独立设计，便于故障排查与维护；支持通过 VME 总线配置存储参数（如缓存大小、校验方式），无需拆卸模块即可完成调试；板载 LED 指示灯，实时显示电源状态、存储设备连接状态及读写状态，便于现场工程师快速判断设备运行情况。

Motorola MVME320B磁盘控制器板  英文资料：

Analysis of Motorola MVME320B VMEbus Disk Controller Board

Motorola MVME320B is an industrial grade disk controller board designed specifically for VME embedded systems. Its core positioning is the "storage device management center" - by providing high-speed storage interfaces and data management functions, it interfaces with storage devices such as hard drives and flash memory for VME main control units (such as single board computers and processor modules), achieving reliable read and write, cache optimization, and error protection of critical data. It is a core I/O expansion module that ensures "high stability data storage" in industrial, scientific research, national defense, and other scenarios.

1、 Core technical characteristics

Multi type storage device adaptation

Supports multiple storage media interfaces, including IDE hard drives, SCSI devices, and industrial grade flash memory modules (such as CompactFlash). Users can choose between "high-capacity mechanical hard drives" (suitable for massive log storage) or "high reliability flash drives" (suitable for frequent vibration in vehicle and industrial control scenarios) according to application requirements, and can connect directly without additional adapters, covering mainstream storage needs in industrial scenarios.

Efficient data management and protection

Integrated data read/write control, cache management, and error detection functions:

Built in high-speed cache (typical capacity 16KB-64KB) reduces the interaction delay between the main control unit and storage devices, improves data read and write speed, and is suitable for scenarios such as "real-time logging" and "high-speed storage of experimental data";

Support data verification (such as CRC verification) and error recovery mechanism, which can automatically detect data errors during read and write processes and attempt to repair them, avoiding the loss of critical data and ensuring storage reliability.

VMEbus deep compatibility and collaboration

Fully compliant with the VMEbus standard, it can seamlessly collaborate with MVME series processor modules (such as MVME-162, MVME-6100) as a slave module:

Receive storage control instructions (such as data read/write, device initialization) from the main control unit through the VME bus, and synchronously provide feedback on storage status (such as disk space, read/write progress);

Support VME interrupt response, which can actively report abnormal events such as "storage failure" and "disk full" to the main control, facilitating the system to trigger alarms or switch to backup storage in a timely manner, and avoiding data storage interruptions.

Industrial grade environmental tolerance

Adopting industrial grade hardware design, it is resistant to vibration (suitable for 10-500Hz industrial vibration environment), high temperature (working temperature coverage of 0 ℃~60 ℃, some versions support wide temperature range of -20 ℃~+70 ℃), and can adapt to harsh environments such as industrial workshops, railway vehicles, outdoor communication base stations, etc; The circuit design has the ability to resist electromagnetic interference, avoiding storage read and write abnormalities caused by strong interference, supporting 7 × 24-hour continuous operation, and meeting the "uninterrupted storage" requirements of critical systems.

Modularity and ease of use

Adopting a modular layout, the storage interface and control circuit are independently designed for easy troubleshooting and maintenance; Support configuring storage parameters (such as cache size and verification method) through the VME bus, and debugging can be completed without disassembling the module;

Motorola  MVME320B磁盘控制器板  产      品      展      示      

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The content is from Ruichang Mingsheng Automation Equipment Co., LTD

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