VMIVME-5576-000 带中断的光纤反射式存储器  冗余传输模式

【产品详情】

特征：

高速光纤网络

节点之间 2000 m，最多 256 个节点

错误检测

用于抑制错误的冗余传输模式

A24：A32：D32：D16：D8 内存访问

VMIC / GE Fanuc VMIVME-5576 反射式存储器接口允许在多达 256 个独立系统（节点）之间以高达 6.2 MB/s 的速率共享数据。每个反射式存储器板可配置256 KB至1 MB的板载SRAM。本地SRAM提供对存储数据的快速读取访问时间。写入存储在本地SRAM中，并通过高速光纤数据路径广播到其他反射存储器节点。节点之间的数据传输是软件透明的，因此不需要 I/O 开销。发送和接收 FIFO 在峰值数据速率期间缓冲数据，以优化 CPU 和总线性能，以保持高数据吞吐量。

反射存储器还允许通过写入字节寄存器来中断一个或多个节点。这些中断（三级，用户可定义）信号可用于同步系统进程，或用于跟踪之前可能存在的任何数据。中断始终跟踪数据，以确保在确认中断之前接收到数据。VMIVME-5576 不需要初始化，除非使用中断。如果使用中断，则必须将向量和中断电平写入板载寄存器，并对中断进行布防。

系统上的每个节点都有一个介于 0 和 255 之间的唯一标识号。节点编号是在硬件系统集成期间通过在电路板上放置跳线来确定的。该节点编号可以通过访问板载寄存器由软件读取。在某些应用程序中，此节点号可用于建立节点的功能。

VMIVME-5576-000 带中断的光纤反射式存储器  冗余传输模式

【英文介绍】

Features:

High speed fiber optic network

There are 2000 m between nodes and a maximum of 256 nodes

Error detection

Redundant transmission modes used to suppress errors

A24: A32: D32: D16: D8 Memory access

The VMIC/GE Fanuc VMIVME-5576 reflective memory interface allows data to be shared between up to 256 independent systems (nodes) at rates of up to 6.2 MB/s. Each reflective memory board can be configured with 256 KB to 1 MB of on-board SRAM. Local SRAM provides fast read access time to stored data. Writes are stored in the local SRAM and broadcast to other reflective memory nodes via high-speed fiber data paths. Data transfers between nodes are software-transparent, so there is no I/O overhead. Transmit and receive FIFOs buffer data during peak data rates to optimize CPU and bus performance to maintain high data throughput.

Reflection memory also allows one or more nodes to be interrupted by writing to a byte register. These interrupt (level 3, user definable) signals can be used to synchronize system processes, or to track any data that may have existed before. Interrupts always track data to ensure that data is received before an interrupt is confirmed. VMIVME-5576 does not require initialization unless interrupts are used. If interrupts are used, vectors and interrupt levels must be written to the onboard register and the interrupts must be defended.

Each node on the system has a unique identification number between 0 and 255. The node number is determined by placing jumpers on the board during hardware system integration. The node number can be read by software by accessing the onboard register. In some applications, this node number can be used to establish the functionality of the node.

VMIVME-5576-000 带中断的光纤反射式存储器  冗余传输模式

【其他型号推荐】