Patent ID: 9111051
Filing Date: 2015-08-18
Classification: G06F,H04L

Abstract:
1. An asynchronous protocol converter provided between neighboring routers in an LSI (Large Scale Integrated circuit) including a plurality of IP cores and a router provided adjacent to the plurality of IP cores, comprising: a two-to-four-phase converter connected to the neighboring router in the LSI; a four-phase pipelined router connected to the output side of the two-to-four-phase converter; a four-to-two-phase converter connected to an output of the four-phase pipelined router; an input controller for controlling the two-to-four-phase converter; and an output controller for controlling the four-to-two-phase converter, wherein in the input controller, an input phase signal (in_phase) is input from the two-to-four-phase converter; an input enable signal (in_enable) is output to the two-to-four-phase converter; an input completion signal (in_completion) is input from the four-phase pipelined router, wherein in the output controller, an output completion signal (out_completion) is input from the four-phase pipelined router; an output enable signal (out_enable) is output to the four-phase pipelined router; an output phase signal (out_phase) is input from the four-to-two-phase converter; a pre-output phase signal (pre wherein protocol conversions from the two-to-four-phase and the four-to-two-phase are independently performed by the input controller and the output controller.