Secure programmable logic device

Secure programmable logic device

  • CN 1,444,799 A
  • Filed: 06/11/2001
  • Published: 09/24/2003
  • Est. Priority Date: 07/28/2000
  • Status: Abandoned Application
First Claim
Patent Images

1. secure programmable logical integrated circuit system, it comprises:

  • One has the multi-chip module of outside lead;

    One programmable logic chip, it is installed in the described multi-chip module and with all outside leads and is connected;

    One is installed in the config memory chip in the described multi-chip module, this config memory chip-stored is used for the configuration data of the configuration of programmable logic chip being programmed by at the transfer of data connecting line of multi-chip module inside, config memory is connected with the outside lead that is used to programme, wipe instruction and will be stored in the configuration data in this config memory chipWherein, described configuration store chip comprises an encrypted bits, and described encrypted bits has one first state, and when this first state, configuration data can be programmed and the outside lead by described multi-chip module carries out retaking of a year or grade;

    Described encrypted bits also has one second state, when this second state, can only wipe instruction by described outside lead and and be connected, and at this second state, the transmission link of described internal data is activated and carries out work.

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