For the personal computer which was decided in substitutes to the PCI bus serial transfer interface. Those which 3GIO which the Intel corporation developed standard are standardized. The PCI bus which presently is adopted with most personal computers has used parallel transfer system, there is no compatibility at physical level with PCI Express 1.1, but as for communication protocol and the like common ones are used.
The transmission line of the smallest constitution which with PCI Express 1.1 is used type direction 2.5Gbps, the full duplexes of bidirectional 5.0Gbps being possible, although the data of 8 bits is sent, in order such as clock pulse add 2 bits 10 to spend bits which, effective data transfer rate type direction 2.0Gbps bidirectional 4.0Gbps (500MB/s) with it becomes..
PCI Express 2.0 <PCIe 2.0>
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Field:
Personal computer > bus > PCI Express 2.0
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PCI-SIG decided in 2007 January, for the personal computer serial transfer interface. It is the next term version of PCI Express 1.1 which spreads in place of PCI.
As for the transmission line of smallest constitution with PCI Express 1.1 those which are type direction 2.5Gbps type direction 5.0Gbps, were expanded to bidirectional 10Gbps. Although you send PCI Express 1.1 similar and the data of 8 bits, in order such as clock pulse add 2 bits 10 to spend bits which, effective data transfer rate type direction 4Gbps becomes bidirectional 8Gbps (1GB/s). Transfer rate when 16 lanes are used becomes 16GB/s.
PCI Express 2.0 the higher rank of PCI Express 1.1 has become interchangeable, it can connect the equipment for PCI Express 1.1 that way. It is possible, to modify transfer rate dynamically from the software, it is possible to save electric power consumption. Past, not only the connected method of inserting the card in the extended slot, it can connect between the equipment with the metal cable of the length to 10m, concerning the specification which is called “PCI Express Cable” it is decided.
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PCI/ISA bridge <PCI/ISA bridge>
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Field:
Personal computer > chip set > PCI/ISA bridge
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The LSI tip/chip which connects, the PCI bus and the ISA bus in order to use the ISA bus with the motherboard which loads the PCI bus. It converts protocol and the like between the PCI bus and the ISA bus, mutually the data try to be able to do transfer. As for the PCI/ISA bridge there is many a thing which is installed in chip set usually, but because the ISA device there is a direction of abolition as [regashidebaisu], when it is low in the product of price it becomes option, it is.
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PCI-X <PCI-X bus>
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Field:
Personal computer > bus > PCI-X
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| It was announced in 2000 June, extended edition of
At the beginning 3 corporations of the Compaq Computer corporation, the Hewlett-Packard corporation and the IBM corporation lectured with the Intel corporation which lectures about the standard of PCI as pulling out, but presently also the Intel corporation has joined to the decision of standard.
at operational frequency 66MHz, but in the server machine whose data transfer of high speed is necessary data rate above this is required.
By this PCI-X bus, operational frequency it can pull up the break step to 133MHz, maximum data rate reaches to 1.06GB/s. This is the number of 8 times that maximum data rate of the PCI bus (32 bits in bus width/operational frequency 33MHz) which is mounted with the former many computer.
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PCI-X bus <PCI-X>
Field:
Personal computer > bus > PCI-X bus
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It was announced in 2000 June, extended edition of
At the beginning 3 corporations of the Compaq Computer corporation, the Hewlett-Packard corporation and the IBM corporation lectured with the Intel corporation which lectures about the standard of PCI as pulling out, but presently also the Intel corporation has joined to the decision of standard.
The existing PCI bus was operational 64 bits in highest being, bus width, but in the server machine whose data transfer of high speed is necessary data rate above this is required.
By this PCI-X bus, operational frequency it can pull up the break step to 133MHz, maximum data rate reaches to 1.06GB/s. This the PCI bus which is mounted with the former many computer is the number of 8 times that maximum data rate.
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