Error detection device and method for error detection for a command decoder

A method for error detection for a command decoder reading out an associated sequence of control signal words from a command memory based on an input word, wherein the sequence of control signal words comprises at least one control signal word, comprising:

• providing the input word at a first time and providing the input word at a second time for reading out the command memory, wherein the second time is delayed with respect to the first time, to effect a readout of the associated sequence of control signal words at a first and second time;
• and
• receiving and comparing the sequence read out at the first time and the sequence of control signal words read out at the second time to output a signal indicating an error if the associated sequences of control signal words read out at the first and second times are different.

A computer program with a program code for executing a method for error detection for a command decoder reading out an associated sequence of control signal words from a command memory based on an input word, wherein the sequence of control signal words comprises at least one control signal word, when the computer program runs on a computer, the method comprising the steps of providing the input word at a first time and providing the input word at a second time for reading out the command memory, wherein the second time is delayed with respect to the first time, to effect a readout of the associated sequence of control signal words at a first and second time;

• and receiving and comparing the sequence read out at the first time and the sequence of control signal words read out at the second time to output a signal indicating an error if the associated sequences of control signal words read out at the first and second times are different.

A computer program with a program code for executing a method for error detection for a command decoder reading out an associated sequence of control signal words from a command memory based on an input word, wherein the sequence of control signal words comprises at least one control signal word, and wherein a predetermined signature is associated with the sequence of control signal words, when the computer program runs on a computer, the method comprising the steps of providing the input word for reading out the command memory;

• reading out the associated sequence of control signal words from the command memory;
• generating a signature based on the read out sequence of control signal words;
• and receiving and comparing the signature of the read out sequence of control signal words and the predetermined signature to output a signal indicating an error if the signature of the read out sequence of control signal words and the predetermined signature are different.

An error detection device for a command decoder reading out an associated sequence of control signal words from a command memory based on an input word, wherein the sequence of control signal words comprises at least one control signal word, comprising:

• control means for providing the input word at a first time and the input word at a second time for reading out the command memory, wherein the second time is delayed with respect to the first time, for effecting a readout of the associated sequence of control signal words at a first time and a readout of the associated sequence of control signal words at a second time;
• and
• comparing means for receiving and comparing the sequences of control signal words read out at the first and second times, and for outputting a signal indicating an error if the sequence of control signal words read out at the first time and the sequence of control signal words read out at a second time are different.