Edge time reading circuit

Edge time reading circuit

CN
  • CN 102,957,404 B
  • Filed: 10/22/2012
  • Issued: 09/09/2015
  • Est. Priority Date: 10/22/2012
  • Status: Active Grant
First Claim
Patent Images

1. an edge time reading circuit, be made up of analog-to-digital conversion module group, " edge-pulse " modular converter group, time series generation module, snapshot module group, read module and simulation edge signal port set, also comprise parameter configuration port, address input end mouth, sense data output port, it is characterized in that:

  • Analog-to-digital conversion module group, be made up of multiple analog-to-digital conversion module, analog-to-digital conversion module is made up of reference level maker and voltage comparator, the input of analog-to-digital conversion module respectively with simulate edge signal port one to one and be connected, the input of " edge-pulse " modular converter is connected output with one to one respectively;

    " edge-pulse " modular converter group, be made up of multiple " edge-pulse " modular converter, " edge-pulse " modular converter is made up of synchronous edge triggered flip flop, delay circuit 1, delay circuit 2 and XOR circuit, its input is connected with the output of analog-to-digital conversion module one to one respectively, and output is connected with the control input end of snapshot module one to one respectively;

    Time series generation module, be made up of configuration register sum functions sequencer, its input is connected with parameter configuration port, and output is connected with the data input pin of snapshot module as bus;

    Snapshot module group, be made up of multiple snapshot module, each snapshot module is made up of level trigger, writing controller and Read Controller, the output of " edge-pulse " modular converter is connected with one to one respectively in its control input end, data input pin is connected with the output of time series generation module respectively, the enable output port of reading reading enable input corresponding with read module respectively connects, and the data input pin that output is corresponding with read module respectively connects;

    Read module, be made up of address decoder and data/address bus, its address input end is connected with address input end mouth, multiple data input pin is connected with the output of snapshot module respectively, multiplely read enable output port and be connected with the enable input of reading of snapshot module respectively, data output end is connected with sense data output port;

    Simulation edge signal port set is made up of multiple parallel simulation edge signal port.

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