产品详情资料
可用于设置保护模式PCI到VMEbus窗口(也称为PCI从映像)。**此空间可以作为共享内存分配(例如,在基于奔腾III处理器的CPU和VME总线主机之间)。请注意,如果加载了PMC板,扩展BIOS可能会放置在此区域。42 3 VMIVME-7740产品手册I/O端口映射基于奔腾三处理器的SBC包括访问I/O寻址空间中的I/O外围设备的特殊输入/输出指令(与内存寻址空间分开并不同)。I/O地址空间中的位置称为端口。当CPU解码并执行I/O指令时,它在线A00至A15上产生一个16位I/O地址,并识别处理器的I/O控制线的I/O周期。因此,CPU包括一个独立的64K字节I/O地址空间,可作为字节、字或长字访问。标准PC/AT硬件电路仅为外围设备保留1024字节的I/O寻址空间,从I/O$000到$3FF。所有标准的PC I/O外围设备,如串行和并行端口、硬盘和软盘驱动器控制器、视频系统、实时时钟、系统计时器和中断控制器,都在I/O空间的这一区域中寻址。BIOS正确初始化和配置所有这些寄存器;调整这些I/Ocan be used to set up protected mode PCI-to-VMEbus windows (also referred to as PCI slave images). ** This space can be allocated as shared memory (for example, between the Pentium III processor-based CPU and VMEbus Master. Note that if a PMC board is loaded, the expansion BIOS may be placed in this area. 42 3 VMIVME-7740 Product Manual I/O Port Map The Pentium III processor-based SBC includes special input/output instructions that access I/O peripherals residing in I/O addressing space (separate and distinct from memory addressing space). Locations in I/O address space are referred to as ports. When the CPU decodes and executes an I/O instruction, it produces a 16-bit I/O address on lines A00 to A15 and identifies the I/O cycle to the processor’s M/I/O control line. Thus, the CPU includes an independent 64Kbyte I/O address space, which is accessible as bytes, words, or longwords. Standard PC/AT hardware circuitry reserves only 1,024 bytes of I/O addressing space from I/O $000 to $3FF for peripherals. All standard PC I/O peripherals such as serial and parallel ports, hard and floppy drive controllers, video system, real-time clock, system timers, and interrupt controllers are addressed in this region of I/O space. The BIOS initializes and configures all these registers properly; adjusting these I/O
发货期:1-3个工作日,具体可联系客服
质保:质保期一年!
主营产品简介
专注于DCS、PLC、机器人控制系统、大型伺服四大系统领域。
主营产品各种模块/卡件,控制器,触摸屏,伺服驱动器。
优势:供应进口原装正品,专业停产配件,
发货快,货期精准,
主营品牌包括 ABB贝利、GE/FUANC、FOXBORO、英维思TRICONEX 、本特利BENTLY、A-B罗克韦尔、艾默生EMERSON 、OVATION、MOTOROLA、XYVOM、霍尼韦尔HONEYWELL 、力士乐REXROTH、KUKA、NI、DEIF、横河、伍德沃德WOODWARD、瑞恩、施耐德SCHNEIDER 、安川、 穆格MOOG、PROSOFT等品牌。
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●使用前:
在操作和维护,安装设备之前,请阅读并严格遵守安全相关的信息。
Read and strictly follow safety-related information before operatingmaintainingand installing equipment.
●使用者要求:
必须从事安装,组装或维护设备等相关工控电气机械以及其他相关技术的人员。
Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.应用范围:
应用于品牌本系列工业以及生产生活自动化设备产品。
Used in the brand of this series of industriaand production automation eauipment products
适用于场景:系统集成,非标定制,产线升级改造,原设备电气替换等等。
Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.
●操作人员:
应该由本品牌专业培训操作员来安装、操作和维修设备。专业人员具有技术能力强,熟悉安全信息和安全实施:
熟悉设备的安装加工、操作和维护:熟悉处理所有的潜在危险情况。
Equipment should be installed,operated and maintained by trained operators from the brand
●危险情况
警告
.请注意使用人员的人身安全。
●除了产品特性以及功能,还需了解产品的使用寿命环境。
●充分学习产品使用手册,否则非专业人员可能会造成人身危险。
Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.
●服务行业
适用水泥,木业,石业,橡胶,石油,化工,发电,环保,水处理,制冷,交通,钢铁,食品,饮料,船舶,制冷等行业
Applicable to cementwood,stone,rubber,petroleumchemical, power generation,
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