SOC (System on a Chip) module interface implementation method based on AMBA (Advanced Microcontroller Bus Architecture) bus

Abstract

The invention discloses an SOC (System on a Chip) module interface implementation method based on an AMBA (Advanced Microcontroller Bus Architecture) bus. Firstly, an SOC module interface system basedon the AMBA bus is constructed and comprises an AMBA protocol slave equipment explanation module (1), a storage decoding module (2), a storage module (3), a time sequence control module (5) and an interruption control module (6) and also comprises a conflict protection module (4), wherein the interface receives a main equipment request from the AMBA protocol slave equipment explanation module (1), the request is transferred to the storage decoding module (2) to be parsed, information in the storage module (3) is extracted according to a parsing result, the conflict protection module (4) solves a data conflict generated in a transaction process, and the interruption control module (6) generates a corresponding interruption signal according to the operation result of the time sequence control module (5). By use of the method, the problems that a universal AMBA protocol interface circuit is low in speed and complex in debugging and is difficult in combining with circuit design are solved, interface stability is increased through a unidirectional protection mechanism.

Description

technical field [0001] The invention relates to an interface realization method, in particular to an AMBA bus-based SOC module interface realization method. Background technique [0002] At present, most SOC chips use the AMBA bus system, and its bus protocols are AXI, AHB and APB protocols. This type of bus system has the advantages of high speed, general purpose, and suitable for chip implementation. Applied to single-core and multi-core SOC chips. However, the general-purpose bus interface cannot fully meet the requirements of our army's SOC chip, which is manifested in the following aspects: [0003] First of all, most of the AMBA bus interfaces are designed for general-purpose processors, and their bus transactions are relatively complex and there are a lot of uncertainties. Therefore, complex logic is added to the bus interface to complete complex operations, such as SPLIT operations and BURST operations. In order to achieve higher security, the device communicat...

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of SOC module interface realization method based on AMBA bus, solves the problem of reducing interface speed, increasing debugging difficulty, prolonging development cycle and lacking protection mechanism in the application of general AMBA bus interface on SOC

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