Electronic apparatus, dispersion adjustment method of ic internal component section of electronic apparatus and ic

A dispersion adjustment method for an IC internal component section of an electronic apparatus, comprising the steps of:

• writing, into a nonvolatile memory of a first integrated circuit which includes an internal component section capable of being adjusted with adjustment data for processing an input signal, the nonvolatile memory in which beforehand acquired adjustment data of a result of adjustment carried out in advance for the internal component section are stored, and an interface section having a function of transferring the beforehand acquired adjustment data read out from the nonvolatile memory to the outside and another function of storing actual use adjustment data sent from the outside and supplying the stored actual use adjustment data to the internal component section, the beforehand acquired adjustment data;
• by a control section, supplying a test signal from a test signal generation section in place of the input signal to the first integrated circuit and issuing an instruction to a signal processor of a second integrated circuit, which includes, as internal component sections, a processing section configured to process an output signal of the first integrated circuit, a signal processor to which the interface section of the first integrated circuit is connected and a detection section configured to detect decision information for deciding a result of the process of the test signal carried out by the processing section, to produce actual use adjustment data;
• and
• by the signal processor, repeating, upon reception of the instruction to produce actual use adjustment data from the control section, a process of receiving the beforehand acquired adjustment data read out from the nonvolatile memory through the interface section, producing an initial value for the actual use adjustment data from the received beforehand acquired adjustment data, sending the initial value for the actual adjustment data to the interface section, updating the actual use adjustment data based on the decision information from the detection section to produce updated actual use adjustment data and sending the updated actual use adjustment data to the interface section to produce optimum actual use adjustment data.

An integrated circuit, comprising:

• as internal component sections, a processing section configured to process an output signal of a different integrated circuit which includes an internal component section capable of being adjusted with adjustment data, a nonvolatile memory in which beforehand acquired adjustment data of a result of adjustment carried out in advance for said internal component section are stored, and an interface section having a function of transferring the beforehand acquired adjustment data read out from said nonvolatile memory to the outside and another function of storing actual use adjustment data sent from the outside and supplying the stored actual use adjustment data to said internal component section;
• a signal processor to which said interface section of the different integrated circuit is connected, said signal processor receiving an instruction to produce actual use adjustment data from a control section;
• and
• a detection section configured to detect decision information for deciding a result of the process of the test signal carried out by said processing section;
• said signal processor repeating, upon reception of the instruction to produce actual use adjustment data, a process of receiving the beforehand acquired adjustment data read out from said nonvolatile memory through said interface section, producing an initial value for the actual use adjustment data from the received beforehand acquired adjustment data, sending the initial value for the actual adjustment data to said interface section, updating the actual use adjustment data based on the decision information from said detection section to produce updated actual use adjustment data and sending the updated actual use adjustment data to said interface section to produce optimum actual use adjustment data.

An electronic apparatus, comprising:

• a first integrated circuit including an internal component section capable of being adjusted with adjustment data for processing an input signal and a data storage section configured to store actual use adjustment data send from the outside and supplying the stored actual use adjustment data to said internal component section;
• a nonvolatile memory in which beforehand acquired adjustment data of a result of adjustment carried out in advance for said internal component section of said first integrated circuit are stored;
• a test signal generation section configured to generate a test signal to be supplied to said first integrated circuit;
• a second integrated circuit including, as internal component sections, a processing section configured to process an output signal of said first integrated circuit, a signal processor to which said data storage section of said first integrated circuit is connected and a detection section configured to detect decision information for deciding a result of the process of the test signal carried out by said processing section;
• and
• a control section configured to supply the test signal from said test signal generation section in place of the input signal to said first integrated circuit and issuing an instruction to said signal processor of said second integrated circuit to produce actual use adjustment data;
• said signal processor repeating, upon reception of the instruction to produce actual use adjustment data, a process of receiving the beforehand acquired adjustment data read out from said nonvolatile memory through said interface section, producing an initial value for the actual use adjustment data from the received beforehand acquired adjustment data, sending the initial value for the actual adjustment data to said interface section, updating the actual use adjustment data based on the decision information from said detection section to produce updated actual use adjustment data and sending the updated actual use adjustment data to said interface section to produce optimum actual use adjustment data.