Patent ID: 7352965

Claim:
A digital photographic device comprising: a camera module configured to take a picture and to create image data; a host module configured to save said image data; an interface part configured to connect said camera module to said host module; and a chassis configured to integrally hold said camera module, said host module, and said interface part; wherein said host module comprises: a host CPU that is connected to said interface part; a register that is connected to said interface part and is provided with a first area and a second area distinguished from said first area depending on an address, and a camera CPU that is connected to said register and configured to receive an interrupt when the data is written in said first area; said host CPU is configured to prepare a type of data and to write said type of data in said first area through said interface part; said camera CPU is configured to prepare dual data that correspond to said written type of data and to write said dual data in said second area; and said host CPU is configured to directly read the data from said second area through said interface while designating the address of said second area and further, said host CPU is configured to directly write the data in said second area through said interface while designating the address of said second area.