MIPI:  Stands for Mobile Industry Processor Interface developed by MIPI Alliance. MIPI is the main    interface for connecting IP blocks in mobile phone, A broad portfolio of interface specifications from the MIPI Alliance enables design engineers to efficiently interconnect essential components in a mobile device, from the modem and antenna to the peripherals and application processor. MIPI specifications have enabled manufacturers to simplify the design process, reduce design costs, create economies of scale that lower price points, and shorten time-to-market for components, features, and services. Fundamentally, every MIPI specification addresses the industry’s needs for three key characteristics that are essential for any successful mobile design: low power consumption, high-performance operations, and low electromagnetic interference (EMI). MIPI currently has a pair of high-speed physical-layer (PHY) specifications, M-PHY and D-PHY, to support a full range of application requirements in mobile terminals[4]. Application area for MIPI includes many domains, In this paper we focused on Chip-to-Chip Inter Process Communications which includes two main protocols LLI and DigRF.
    1. Core Frame Protocol:This protocol is developed by PalmBeach corporation. The Core-Frame architecture is low power high-performance on-chip interconnect architecture for integration of SOC blocks.It consists of  three independent parallel buses (CPU bus, Palm-Bus and M-Bus)  rather than a hierarchy of buses which allows concurrent activities on both buses maximizing available bandwidth.