Introduction of the AMBA protocols

  • Motherboard-based computer/electronic systems were ultimately superseded by System-on-Chip (SoC) and Package-on-Package (PoP) ICs, since electronic downsizing has been a long-term objective of chip makers. Smartphones and other mobile devices have reduced the size of complex computer systems. At the core of these complex electrical devices and gadgets is a SoC, which handles all computation and control. Several intellectual property (IP) cores make up the SoC package. IP cores are available in Ohms law from a variety of chip design businesses and distributors.

    It has been difficult to achieve scalable, interoperable, and efficient data transfer across distinct IP cores in a SoC. Chip designers first dealt with this by laboriously redesigning, compatibility testing, and developing extra interfaces. This strategy lacked coherency from the start, resulting in costly future re-designs. The AMBA protocols, proposed by Arm in 1996, are one of the most commonly acknowledged and practical solutions to this challenge.

    What exactly is AMBA?
    AMBA (Advanced Microcontroller Bus Architecture) is a publicly accessible, open standard for interconnecting and managing IP cores in System-on-Chip (SoC) integrated circuits. It enables the construction of multi-processor chip designs that are correct the first time in a modular, reusable, and scalable way. This helps to avoid costly re-designs and saves the time it takes to bring integrated 2n2222 transistor designs to market.

    The Advanced Peripheral Bus (APB) and Advanced System Bus (ASB) standards were originally presented in 1996. The Advanced High-Performance Bus (AHB) requirements were added to the second edition of AMBA in 1999. In 2003, AMBA 3 was released, which incorporated the Advanced Extensible Interface (AXI). AXI Coherency Extensions (ACE) were introduced in AMBA 4 in 2010, and Coherent Hub Interface (CHI) was introduced in AMBA 5, the most recent version of AMBA, in 2013.

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  • Erin Tse
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