HyperTransport for Phenom II X4 920

[Wampanoag]

The AMD uses Hyper Transport to reinstate the Front-Side Bus in their Opteron, Athlon 64, Sempron 64, Turion 64, Phenom and Phenom II families of microprocessors. An additional utilize for HyperTransport is as an interrelate for NUMA multiprocessor systems. Does amd processors used are operational with hyper transport technology. What it recommend.

[Abhibhava]

The Hyper Transport Technology is a high-speed, low latency, point-to-point connection premeditated to enlarge the communication speed connecting integrated circuits in systems, servers, embedded systems, and networking and telecommunications apparatus up to 48 times faster than a number of obtainable technologies. The Hyper Transport Technology assist decrease the number of buses in a system, which be able to decrease system bottlenecks and facilitate today's faster microprocessors to use system memory additional proficiently in high-end multiprocessor systems.

[Aloke]

The Hyper Transport Technology is premeditated to make available considerably additional bandwidth than present technologies. Utilize low-latency responses and low pin counts. It is able to in addition hold up compatibility with legacy PC buses at the same time as being extensible to innovative SNA (Systems Network Architecture) buses. It comes into view transparent to operating systems and present diminutive collision on peripheral drivers. The Hyper Transport Technology was invented at AMD with assistance from industry partners and is managed and licensed by the Hyper Transport Technology conglomerate, a Texas non-profit corporation.

[Balamani]

The Hyper Transport comes in four speed versions or descriptions—1.x, 2.0, 3.0, and 3.1—which work from 200 MHz to 3.2 GHz. It is in addition a DDR or "Double Data Rate" correlation, meaning it sends information on together the rising and falling edges of the clock indication. This permits for a maximum information rate of 6400 MT/s when working at 3.2 GHz. The operating regularity is auto-negotiated.

[Balamohan]

The Hyper Transport is packet-based, where every packet consists of a position of 32-bit words, not considering of the physical width of the link. The first word in a packet forever contains a command field. Many packets include a 40-bit address. A supplementary 32-bit control packet is pretended when 64-bit addressing is compulsory. The information payload is sent subsequent to the control packet. Transfers are forever padded to a multiple of 32 bits, regardless of their authentic length.

[Bansi_WADIA]

For the Hyper Transport packets come into the inter connect in section known as bit times. The number of bit times necessary depends on the link width. The Hyper Transport in addition sustains and maintains system management messaging, signaling interrupts, issuing probes to neighboring devices or processors, I/O transactions, and universal information transactions. There are two kinds of write commands supported posted and non-posted. The Posted writes do not necessitate a reaction from the target. This is frequently used for high bandwidth devices such as Uniform Memory Access traffic or direct memory right of entry transfers. Non-posted writes necessitate a reply from the recipient in the form of a "target done" response. Reads in addition require a response, containing the read information. The Hyper Transport sustains and maintains the PCI consumer/producer ordering model.

[Apple.Mac.Rocker]

The most important utilize for Hyper Transport is to reinstate the front-side bus, which is presently dissimilar for each type of apparatus. For illustration, a Pentium cannot be plugged into a PCI Express bus. In order to enlarge the system, the proprietary front-side bus must attach through adapters for the variety of standard buses, similar to AGP or PCI Express. These are characteristically included in the particular controller functions, namely the northbridge and southbridge.