KVM controller based on FPGA and PS2 protocol

Abstract

The invention provides a KVM controller based on an FPGA and a PS2 protocol. The KVM controller comprises a signal three-state processing and top-layer interface, an operation control module, a receiving module, a sending module, a mouse response module, a keyboard response module, a switching control module and a switching signal monitoring module. The KVM controller aims at integration, miniaturization and reduction of hardware design complexity and solves the defects of a traditional controller in the aspects of expansibility and compatibility.

Description

technical field [0001] The invention relates to the design technology of semiconductor hybrid integrated circuits, in particular to a KVM controller based on FPGA and PS2 protocol. Background technique [0002] The KVM controller currently used is implemented by a microcontroller or a dedicated PS2 controller. In order to achieve stable control of interface signals, the traditional KVM controller places a PS2 dedicated controller at the interface of each PC, and the main controller (MCU, DSP, etc.) is also required to realize multi-channel signal switching control. As the number of PS2 host computers increases, the traditional design has poor scalability. When the controller is embedded in other devices (keyboard, mouse), it is more difficult to meet the design space requirements. SUMMARY OF THE INVENTION [0003] The present invention takes integration, miniaturization and reduction of hardware design complexity as the direction, and proposes a KVM controller based on FP...

AI Technical Summary

Problems solved by technology

As the number of PS2 host computers increases, the scalability of the traditional design is poor. When the controller is embedded in other devices (keyboard, mouse), it is more difficult to meet the design space requirements

Images