Thunderbolt Technology: The Transformational PC I/O
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Transcript of Thunderbolt Technology: The Transformational PC I/O
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Thunderbolt™ TechnologyThe Transformational PC I/O
Tanbin Islam Siyam0707043
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Introduction• Thunderbolt is an interface for
connecting peripheral devices to a computer via an expansion.
• Originally codenamed Light Peak.• Developed by Intel, with
technical collaboration of Apple.
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Introduction (cont.)
• Thunderbolt™ technology is a transformational I/O innovation, supports data (PCI Express) and HD display (DisplayPort) connections over a single cable.
• 10 Gbps of full duplex bandwidth per channel.
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Features at a glance• Dual-channel 10Gbps per port• Bi-directional• Dual-protocol (PCI Express and DisplayPort)• Compatible with existing DisplayPort devices• Daisy-chained devices
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Features at a glance (cont.)
• Electrical or optical cables• Low latency with highly accurate time
synchronization• Uses native protocol software drivers• Power over cable for bus-powered devices
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Refining the I/O• I/O technology evolve to provide higher bandwidth of data
transfer with every generation upgrade of IT.• We now have two discrete type of I/O-
o Displayo Data
• This two fundamental I/O protocol is combined in Thunderbolt technology within a single meta-protocol.
• It transmits them in a single cable and able to manage traffic routing with intelligent hardware controllers.
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Refining the I/O (cont.)
• Devices in Daisy chain connection supported.• Hotplug Ready.
Data storageHD Display
Laptop
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Protocol Architecture• Thunderbolt technology is based on a new
architecture with full-duplex links.• Thunderbolt port is capable of providing the full
bandwidth of the link in both directions.• no sharing of bandwidth between ports or between
upstream and downstream directions.
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Protocol Architecture (cont.)• The Thunderbolt protocol
physical layer is responsible for link maintenance including hot-plug detection, and data encoding to provide highly efficient data transfer.
• The heart of the Thunderbolt protocol architecture is the transport layer.
Figure: Thunderbolt™ Technology Architecture.
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Protocol Architecture (cont.)• DisplayPort and PCI Express protocols are mapped onto the
transport layer.• Mapped protocol packets between a source device and a
destination device may be routed over a path that may cross multiple Thunderbolt controllers.
Figure: PCI Express and DisplayPort transported between Thunderbolt™ controllers over a Thunderbolt cable.
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Protocol Architecture (cont.)• At the destination device, a protocol adapter
recreates the mapped protocol in a way that is indistinguishable from what was received by the source device.
• Thunderbolt technology-enabled product devices appear as PCI Express or DisplayPort devices to the operating system of the host PC.
• So available standard drivers are capable of using them.
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Controller Architecture• Hostside Thunderbolt
controllers have one or more DisplayPort input interfaces, a PCI Express interface along with one or more Thunderbolt technology interface.
• A single chip, the host-side controller enables system vendors to easily incorporate Thunderbolt technology into their designs.
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Comparison Chart
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Conclusion• Thunderbolt is fast and balanced in performance.• It simplifies device management with smart features like daisy
chain etc.• With Thunderbolt technology, workstation-level performance
feature expansion can be packaged as standalone accessories, and is only a cable away.
• Thunderbolt technology opens doors to entirely new system and product designs.
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References• ‘Thunderbolt Technology’, Technology Brief, Intel Corporation,
June, 2011.• ‘Intel Light Peak: Overview’, Intel Corporation, February 25,
2010.• http://www.intel.com/technology/io/thunderbolt/index.htm• http://www.apple.com/thunderbolt/