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单词 PCI X
释义

PCI X

中文百科

PCI-X PCI-X

(重定向自PCI X)
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Dual Port Network Card for Single PCI-X slot to save on PCI-X slots and use the full potential of the PCI-X 64-bit bus
3.3 V and 5 V keying of 64-bit PCI cards (both PCI and PCI-X).  While most 64-bit PCI-X slots are 5 V and are backward compatible with common 32-bit 5 V PCI cards, a number of 64-bit PCI-X slots are 3.3 V and will not accept 5 V cards, by far the most common voltage for 32-bit PCI cards.

PCI-X是传统PCI总线(Peripheral Components Interconnect)的改版,有更高的带宽。

PCI-X 是1998年由IBM、HP,以及康柏(Compaq)等公司制定,采用64比特总线宽度,以及133MHz的带宽来发送数据,有更多的接脚,而且所有的连接设备会共享所有可用的带宽,但两者的协定相当类似。

PCI-X还支持MSI,这是一种主动通知的中断机制。过去的PCI都是被动通知中断,而且是共享中断,当有设备(device)发生中断时,系统会通知PCI所有的设备,这样会造成时间的浪费。MSI的特点是将中断矢量编号送至指定的内存,接着再触发中断。

英语百科

PCI-X PCI-X

(重定向自PCI X)
Dual Port Network Card for Single PCI-X slot to save on PCI-X slots and use the full potential of the PCI-X 64-bit bus
3.3 V and 5 V keying of 64-bit PCI cards (both PCI and PCI-X).  While most 64-bit PCI-X slots are 5 V and are backward compatible with common 32-bit 5 V PCI cards, a number of 64-bit PCI-X slots are 3.3 V and will not accept 5 V cards, by far the most common voltage for 32-bit PCI cards.
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PCI-X, short for Peripheral Component Interconnect eXtended, is a computer bus and expansion card standard that enhances the 32-bit PCI local bus for higher bandwidth demanded mostly by servers and workstations. It is a double-wide version of PCI, running at up to four times the clock speed, but is otherwise similar in electrical implementation and uses the same protocol.

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更新时间:2025/6/17 1:34:04