Semiconductor integrated circuit
AssigneeSeiko Epson Corporation
InventorYoichi Yamada
Life of this patent
Estimating the term…
Abstract
A semiconductor integrated circuit connected to an external processor has a memory which stores data, a terminal which connects the memory with the processor, an information generation circuit which generates production information about the semiconductor integrated circuit, and a write circuit which writes the information into the memory after the semiconductor integrated circuit is reset or a command from the processor ends.
Claims17
A semiconductor integrated circuit connected to an external processor comprising:
- a memory which stores data;
- a terminal which connects the memory with the processor;
- an information generation circuit which generates production information about the semiconductor integrated circuit;
- and
- a write circuit which writes the information into the memory before the semiconductor integrated circuit starts normal operation and when a command from the processor ends.
A semiconductor integrated circuit connected to an external processor comprising:
- a memory which stores data;
- a terminal which connects the memory with the processor;
- an information generation circuit which generates production information about the semiconductor integrated circuit;
- and
- a write circuit which writes the information into the memory before the semiconductor integrated circuit starts normal operation and when a sleep state of the semiconductor integrated circuit is released.
A semiconductor integrated circuit connected to an external processor comprising:
- a memory which stores data;
- a terminal which connects the memory with the processor;
- an information generation circuit which generates production information about the semiconductor integrated circuit;
- a write circuit which writes the information into the memory before the semiconductor integrated circuit starts normal operation;
- and
- a register which receives address data of an area of the memory where the information is written, from the processor, and wherein the write circuit writes the address data into the memory.
A semiconductor integrated circuit connected to a combination of an external memory and a processor comprising:
- a terminal connected to the external memory;
- an information generation circuit which generates production information about the semiconductor integrated circuit;
- and
- a write circuit which writes the information into the external memory through the terminal before the semiconductor integrated circuit starts normal operation and when a sleep state of the semiconductor integrated circuit is released.
A semiconductor integrated circuit having a built-in processor comprising:
- a memory which is connected to the processor and stores data;
- an information generation circuit which generates production information about the semiconductor integrated circuit;
- and
- a write circuit which writes the information into the memory before the semiconductor integrated circuit starts normal operation and when a sleep state of the semiconductor integrated circuit is released.
Dependencies are inferred from the claim text.