Samsung S3C2440A Laptop User Manual


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S3C2440A RISC MICROPROCESSOR CAMERA INTERFACE
23-8
TIMING DIAGRAM FOR REGISTER SETTING
The first register setting for frame capture command can occur anywhere in the frame period. But, it is
recommended that you set it at the CAMVSYNC “L” state first and the CAMVSYNC information can be read from
the status SFR (Please see next page). All command include ImgCptEn, is valid at CAMVSYNC falling edge. But
be careful that except for first SFR setting, all command should be programmed in an ISR (Interrupt Service
Routine). Especially, capture operation should be disabled when related information for target size are changed.
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Figure 23-8 Timing Diagram for Register Setting
NOTE :
FIFO overflow of codec path will be occurred if codec path is not operating when preview path is operated. If you
want to use codec path under this case, you should stop preview path and reset CAMIF using SwRst bit of
CIGCTRL register. Then clear overflow of codec path and set special function registers that you want.
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