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, 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 data transfer function of transferring the beforehand acquired adjustment data read out from the nonvolatile memory to the outside and a data storage function of storing actual use adjustment data sent from the outside and supplying the actual use adjustment data to the internal component section, the adjustment data;
• by a signal processor of a second integrated circuit which includes, as an internal component section, the signal processor to which the interface section of the first integrated circuit is connected, receiving, when the power supply is turned on, the beforehand acquired adjustment data read out from the nonvolatile memory through the interface section and storing the received beforehand acquired adjustment data into a built-in memory of the signal processor;
• and
• by the signal processor, reading out, while the power supply remains on, the beforehand acquired adjustment data from the built-in memory, producing the actual use adjustment data from the beforehand acquired adjustment data read out from the built-in memory and sending the produced actual use adjustment data to the interface section.

An integrated circuit, comprising:

• an integrated circuit including, as an internal component section, a signal processor to which an interface section 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 the internal component section are stored, and an interface section having a data transfer function of transferring the beforehand acquired adjustment data read out from the nonvolatile memory to the outside and a data storage function of storing actual use adjustment data sent from the outside and supplying the stored actual use adjustment data to the internal component section, is connected;
• said signal processor being operable to receive, when the power supply is turned on, the beforehand acquired adjustment data read out from said nonvolatile memory through said interface section, store the received beforehand acquired adjustment data into a built-in memory of said signal processor, read out, while the power supply remains on, the beforehand acquired adjustment data from said built-in memory, produce the actual use adjustment data from the beforehand acquired adjustment data read out from said built-in memory and send the produced actual use adjustment data to said interface section.

An electronic apparatus, comprising:

• a first integrated circuit including an internal component section capable of being adjusted with adjustment data and a data storage section configured to supply actual use adjustment data sent from the outside 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;
• and
• a second integrated circuit including a signal processor, to which said data storage section of said first integrated circuit and said nonvolatile memory are connected, as internal component sections, said signal processor being operable to receive, when the power supply is turned on, the beforehand acquired adjustment data read out from said nonvolatile memory, store the received beforehand acquired adjustment data into a built-in memory of said signal processor, read out, while the power supply remains on, the beforehand acquired adjustment data from said built-in memory, produce the actual use adjustment data from the beforehand acquired adjustment data read out from said built-in memory and send the produced actual use adjustment data to said data storage section.