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  2. System Management Bus - Wikipedia

    en.wikipedia.org/wiki/System_Management_Bus

    Again I²C does not have a similar specification. SMBus defines both rise and fall time of bus signals. I²C does not. The SMBus time-out specifications do not preclude I²C devices co-operating reliably on the SMBus. It is the responsibility of the designer to ensure that I²C devices are not going to violate these bus timing parameters.

  3. Southbridge (computing) - Wikipedia

    en.wikipedia.org/wiki/Southbridge_(computing)

    Through the use of controller-integrated channel circuitry, the northbridge (or CPU itself) can directly link signals from the I/O units to the CPU for data control and access. As of 2024, most personal computer devices based on Intel or AMD architectures no longer use a set of two chips, and instead have a single chip acting as the 'chipset ...

  4. Power Management Bus - Wikipedia

    en.wikipedia.org/wiki/Power_Management_Bus

    The Power Management Bus (PMBus) is a variant of the System Management Bus (SMBus) which is targeted at digital management of power supplies. Like SMBus, it is a relatively slow speed two wire communications protocol based on I²C. Unlike either of those standards, it defines a substantial number of domain-specific commands rather than just ...

  5. I/O Controller Hub - Wikipedia

    en.wikipedia.org/wiki/I/O_Controller_Hub

    ICH - 82801AA. The first version of the ICH was released in June 1999 along with the Intel 810 northbridge.While its predecessor, the PIIX, was connected to the northbridge through an internal PCI bus with a bandwidth of 133 MB/s, the ICH used a proprietary interface (called by Intel Hub Interface) that linked it to the northbridge through an 8-bit wide, 266 MB/s bus.

  6. Bus (computing) - Wikipedia

    en.wikipedia.org/wiki/Bus_(computing)

    Four PCI Express bus card slots (from top to second from bottom: ×4, ×16, ×1 and ×16), compared to a 32-bit conventional PCI bus card slot (very bottom). In computer architecture, a bus (historically also called a data highway [1] or databus) is a communication system that transfers data between components inside a computer or between computers. [2]

  7. Host adapter - Wikipedia

    en.wikipedia.org/wiki/Host_adapter

    Fibre Channel host bus adapter. The term host bus adapter (HBA) may be used to refer to a Fibre Channel interface card. In this case, it allows devices in a Fibre Channel storage area network to communicate data between each other – it may connect a server to a switch or storage device, connect multiple storage systems, or connect multiple servers. [2]

  8. Northbridge (computing) - Wikipedia

    en.wikipedia.org/wiki/Northbridge_(computing)

    A typical north/southbridge layout (2015) A typical north/southbridge layout (2007) In computing, a northbridge (also host bridge, or memory controller hub) is a microchip that comprises the core logic chipset architecture on motherboards to handle high-performance tasks, especially for older personal computers.

  9. Arbiter (electronics) - Wikipedia

    en.wikipedia.org/wiki/Arbiter_(electronics)

    The probability of not having reached a stable state decreases exponentially with time after inputs have been provided. A reliable solution to this problem was found in the mid-1970s. Although an arbiter that makes a decision in a fixed time is not possible, one that sometimes takes a little longer in the hard case (close calls) can be made to ...