ALSTOM N897163510Q N897163050Q N897163100U控制脈沖卡件
1.產(chǎn) 品 資 料 介 紹：
中文資料：
LAN綠色當(dāng)LAN芯片為本地總線主控芯片時(shí)，LAN指示燈亮起+12V綠色當(dāng)以太網(wǎng)收發(fā)器接口可使用+12V電源時(shí)，+12V LED亮起。SCSI綠色當(dāng)SCSI芯片是本地總線主機(jī)時(shí)，SCSI指示燈亮起。VME綠色當(dāng)板使用VMEbus時(shí)（VMEbus AS*由VMEchip2斷言）或當(dāng)板被VMEbus訪問時(shí)（VMEchip1是本地總線主機(jī)），VME LED亮起。
數(shù)據(jù)總線結(jié)構(gòu)MVME187上的本地?cái)?shù)據(jù)總線是一條基于MC68040總線的32位同步總線，支持突發(fā)傳輸和監(jiān)聽。本地總線仲裁各種本地總線主設(shè)備和從設(shè)備使用本地總線進(jìn)行通信。
本地總線由優(yōu)先級(jí)類型仲裁器進(jìn)行仲裁，本地總線主控器的優(yōu)先級(jí)從高到低為：ALSTOM N897163510Q N897163050Q N897163100U局域網(wǎng)（最高）ALSTOM N897163510Q N897163050Q N897163100U串行（通過PCCchip2）ALSTOM N897163510Q N897163050Q N897163100UVME總線5。MPU（最低）
英文資料：
LAN Green The LAN LED lights when the LAN chip is local bus master. +12V Green The +12V LED lights when +12V power is available to the Ethernet transceiver interface. SCSI Green The SCSI LED lights when the SCSI chip is local bus master. VME Green The VME LED lights when the board is using the VMEbus (VMEbus AS* is asserted by the VMEchip2) or when the board is accessed by the VMEbus (VMEchip2 is the local bus master).
Data Bus Structure The local data bus on theMVME187 is a 32-bit synchronous bus based on the MC68040 bus, and supports burst transfers and snooping. Local Bus Arbitration The various local bus master and slave devices use the local bus to communicate.
The local bus is arbitrated by priority type arbiter and the priority of the local bus masters from highest to lowest is: 1. 82596CA LAN (highest) 2. CD2401 serial (through the PCCchip2) 3. 53C710 SCSI 4. VMEbus 5. MPU (lowest)
2.產(chǎn) 品 展 示
3.主 營 品 牌
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