RELIANCE 603515-5A工控DCS系統(tǒng)
1.產(chǎn) 品 介 紹
品牌：RELIANCE
型號(hào)說(shuō)明：RELIANCE 603515-5A工控DCS系統(tǒng)
優(yōu)勢(shì)：供應(yīng)進(jìn)口原裝正品，專業(yè)停產(chǎn)配件。
公司主營(yíng)特點(diǎn)：主營(yíng)產(chǎn)品各種模塊/卡件，控制器，觸摸屏，伺服驅(qū)動(dòng)器。
2.產(chǎn) 品 詳 情 資 料：
LAN DMA傳輸RELIANCE 603515-5A嵌入式控制器包括一個(gè)帶DMA控制器的LAN接口。LAN DMA控制器使用FIFO緩沖器將串行LAN總線連接到32位本地總線。FIFO緩沖器允許LAN DMA控制器有效地將數(shù)據(jù)傳輸?shù)奖镜乜偩€。82596CA不執(zhí)行MC68040兼容的突發(fā)周期，RELIANCE 603515-5A因此LAN DMA控制器不使用突發(fā)傳輸。DRAM寫入周期需要3個(gè)時(shí)鐘周期（25 MHz）或4個(gè)時(shí)鐘周期，32 MHz，而讀取周期需要5個(gè)時(shí)鐘周期。LAN DMA控制器的傳輸速率在25 MHz或32 MHz時(shí)為20MB/sec。假設(shè)LAN總線上的連續(xù)傳輸速率為1MB/sec，則來(lái)自LAN總線的傳輸將使用5%的本地總線帶寬。RELIANCE 603515-5A
LAN DMA Transfers The RELIANCE 603515-5AEmbedded Controller includes a LAN interface with DMA controller. The LAN DMA controller uses a FIFO buffer to interface the serial LAN bus to the 32-bit local bus. The FIFO buffer allows the LAN DMA controller to efficiently transfer data to the local bus. The 82596CA does not execute MC68040 compatible burst RELIANCE 603515-5Acycles, therefore the LAN DMA controller does not use burst transfers. DRAM write cycles require 3 clock cycles at 25 MHz or 4 clock cycles at 32 MHz, and read cycles require 5 clock cycles. The transfer rate of the LAN DMA controller is 20MB/sec at 25 MHz or 32 MHz. Assuming a continuous transfer rate of 1MB/sec on the LAN bus, 5% of the local bus bandwidth is used by transfers from the LAN bus.RELIANCE 603515-5A
3.產(chǎn) 品 展 示
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