Semiconductor integrated circuit apparatus and circuit board and information readout method

A circuit board on which a semiconductor integrated circuit apparatus is mounted, the circuit board comprising:

• storage means for allowing reading out from and writing in to outside,
• semiconductor information storage means for storing semiconductor information unique to the semiconductor information circuit apparatus, and
• semiconductor information output means, which is to be connected to the semiconductor information storage means, for reading out the semiconductor information from the semiconductor information storage means in response to a signal supplied from outside and writing the read-out semiconductor information into the storage means.

An information readout method of reading out semiconductor information of a semiconductor integrated circuit apparatus, the method comprising the steps of:

• writing a program, which is for reading out semiconductor information unique to the semiconductor integrated circuit apparatus and stored in the semiconductor integrated circuit apparatus, into a predetermined external storage means,
• reading the program written into the external storage means and reading out the semiconductor information based on the program, and
• writing the read-out semiconductor information into a predetermined region of the external storage means.

A semiconductor integrated circuit apparatus mounted on a predetermined circuit board, the apparatus comprising:

• a semiconductor information storage section for storing semiconductor information unique to the semiconductor integrated circuit apparatus, and
• a semiconductor information output section connected to the semiconductor information storage section for reading out the semiconductor information from the semiconductor information storage section in response to a signal supplied from outside and outputting the read-out semiconductor information to the outside.