×

Emulation system for data-driven processor

  • US 20030229485A1
  • Filed: 01/24/2003
  • Published: 12/11/2003
  • Est. Priority Date: 06/07/2002
  • Status: Active Grant
First Claim
Patent Images

1. A data-driven processor emulation system which, using real data-driven processors, emulates virtual data-driven processors each organized as a pipeline consisting of a sequence of stages, each stage having a data latch for holding a packet, a logic circuit for processing the packet held in said data latch, a self-timed transfer control mechanism for supplying a synchronizing signal to said data latch, and an optional gate logic for controlling, based on processing results from said logic circuit, a SEND signal and an ACK signal transferred between said self-timed transfer control mechanism in said stage and a self-timed transfer control mechanism in a downstream stage, wherein each of said real data-driven processors comprises:

  • data path emulation means for expressing a virtual packet, to be processed in said virtual data-driven processors, as a PACKET message which is a packet to be processed in said real data-driven processor, and for evaluating processing operation of said virtual packet for each functional block within said virtual data-driven processors; and

    timing path emulation means for expressing said SEND signal and said ACK signal, to be controlled by said self-timed transfer control mechanism and said gate logic, as a SEND message and an ACK message, respectively, which are packets to be processed in said real data-driven processor, and for evaluating stage-to-stage transfer operations of said SEND signal and said ACK signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×