RadiSys 859-8379-001B自動(dòng)化控制模塊
1.產(chǎn) 品 資 料 介 紹：
中文資料：
RadiSys 859-8379-001B傳輸電路從傳輸FIFO中檢索數(shù)據(jù)，并將其形成大小從4到64字節(jié)的可變長度數(shù)據(jù)包，這些數(shù)據(jù)包通過光纖接口傳輸?shù)较乱粋€(gè)板的接收器。當(dāng)接收到數(shù)據(jù)時(shí)，電路打開數(shù)據(jù)包并將數(shù)據(jù)存儲(chǔ)在板的接收FIFO中。第三個(gè)電路從接收FIFO將數(shù)據(jù)寫入本地板載SDRAM，其位置與始發(fā)節(jié)點(diǎn)在存儲(chǔ)器中的相對(duì)位置相同
第三個(gè)電路還同時(shí)將數(shù)據(jù)路RadiSys 859-8379-001B由到板自己的傳輸FIFO中。從那里開始，重復(fù)該過程，直到數(shù)據(jù)返回到始發(fā)節(jié)點(diǎn)的接收器。在始發(fā)節(jié)點(diǎn)處，數(shù)據(jù)包被從網(wǎng)絡(luò)中移除。
前面板LED指示燈RadiSys 859-8379-001B在前面板上有三個(gè)LED指示燈。底部的紅色LED是一個(gè)狀態(tài)指示燈，其通電默認(rèn)狀態(tài)為“ON”。狀態(tài)LED可通過寫入位（控制和狀態(tài)寄存器的位31）切換為“OFF”或“ON”，該位指示用戶定義的板狀態(tài)。
英文資料：
From the transmit FIFO, a transmit circuit retrieves the data and forms it into variable length packets sizes from 4 to 64 bytes, which pass over the fiber-optic interface to the receiver of the next board. When data is received, a circuit opens the packets and stores the data in the board’s receive FIFO. From the receive FIFO, a third circuit writes the data into local on-board SDRAM at the same relative location in memory as that of the originating nodeRadiSys 859-8379-001B
The third circuit also simultaneously routes the data into the board’s own transmit FIFO. From there, the process is repeated until the data returns to the receiver of the originating node. At the originating node, the data packet is removed from the network.
Front Panel LED Indicators The RadiSys 859-8379-001B has three LED indicators located on the front panel. The bottom red LED is a status indicator, its power up default state is “ON”. The status LED may be toggled “OFF” or “ON” by writing to a bit (Bit 31 of the Control and Status register), which indicates a user defined board status.
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