Design and Verification of Bus Bridge from OCP to AHB
Bus Bridge between different Protocols
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Protocols are commonly used to connect IP blocks on structured SoCs. Generally Protocol is the back-bone of the SoC and its failure usually leads to a non-functional chip. In present market, various types of standard protocols are available and are used in SoC which requires a bridge to pass the information from one type of protocol to other type of protocol safely and without any data loss. OCP and AMBA AHB protocol are commonly used protocols. In this work, the bus bridge has been designed to interface these protocols which plays a vital role in SoC application such as it may lead to applica...
Protocols are commonly used to connect IP blocks on structured SoCs. Generally Protocol is the back-bone of the SoC and its failure usually leads to a non-functional chip. In present market, various types of standard protocols are available and are used in SoC which requires a bridge to pass the information from one type of protocol to other type of protocol safely and without any data loss. OCP and AMBA AHB protocol are commonly used protocols. In this work, the bus bridge has been designed to interface these protocols which plays a vital role in SoC application such as it may lead to application failure, if it doesn t work properly. Initially OCP and AHB protocols are modeled separately using VHDL and are simulated. Basically Bus Bridge should convert command and data of OCP formats to acceptable AHB formats. This conversion does not ensure proper communication unless the timings of each protocol were met. Hence the interconnecting Bus Bridge wrapper between Core Centric Protocol (OCP) and Bus Centric Protocol (AHB) was designed with proper timing delay. Also the PSL assertions are written in order to verify the behavior of protocols.
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