| 摘要 |
PROBLEM TO BE SOLVED: To safely and efficiently attain garbage correction by executing a rearrangement processing to a block whose rearrangement processing is judged not to be terminated normally by a judging means. SOLUTION: An analog signal outputted from a CCD 2 is converted into a digital signal by an A/D convertor 3. The output of the A/D convertor 3 is DMA-transferred to a DRAM by a DMA controller 20. When the DMA transfer for one frame is ended, a CPU 5 starts a signal processing sequence. A signal processing program is read from a flash ROM 15 to a main storage and executed. A specific pattern is preliminarily written in a management area, and destruction (power source disconnection) is detected by this pattern in the flash ROM 15. When something except this pattern is written in the management area, this system reports the destruction of the ROM. Thus, a garbage collection work can be continuously attained according to need. |
