Multi-path high-speed serial interface controller

Abstract

The invention relates to a multi-path high-speed serial interface controller. The multi-path high-speed serial interface controller comprises a front-end high-speed universal serial bus, a main control logic, and a back-end multi-path high-speed serial interface. The back-end multi-path high-speed serial interface is accessed to the front-end high-speed universal serial bus through the main control logic. The invention provides a multi-path high-speed serial interface controller that extends the high-speed universal serial bus into a high-speed serial interface of a system user-defined protocol, increases the data communication rate, and improves the central control function.

Description

technical field [0001] The invention belongs to an embedded data processing system, and relates to an interface controller, in particular to a multi-channel high-speed serial interface controller. Background technique [0002] With the continuous development of integrated avionics systems, the system has higher requirements for the speed and scale of data exchange and data transmission between various internal functional modules. The traditional parallel bus (such as VME, PCI bus) due to the clock frequency And the limitation of signal routing can no longer meet the needs of data transmission, so the high-speed serial bus is used for data transmission on a large scale between modules. Some general-purpose high-speed serial bus protocols, such as PCIE, RapidIO and Ethernet, although relatively mature and highly standardized, the transmission protocol is also very complicated, which may not be suitable for the transmission application of some specific custom simple protocols. ...

AI Technical Summary

Problems solved by technology

Some general-purpose high-speed serial bus protocols, such as PCIE, RapidIO and Ethernet, although relatively mature and highly standardized, the transmission protocol is also very complicated, which may not be suitable for the transmission application of some specific custom simple protocols. On the contrary, part of the bandwidth will be lost, especially for some large-scale multiplexing applications. If you use the PCIE or RapidIO bus, you must build a corresponding standard bus network and use the corresponding switching chip, which brings certain constraints to the system design. limitation, also brings higher power consumption

Therefore, for more and more multi-channel large-scale data transmission between modules in the avionics system, neither the traditional parallel bus nor the standard high-speed serial bus can meet the application needs.

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