Samsung YP-P10 User Manual Page 519

  • Download
  • Add to my manuals
  • Print
  • Page
    / 596
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 518
S3C2440A RISC MICROPROCESSOR CAMERA INTERFACE
23-10
TIMING DIAGRAM FOR LAST IRQ
IRQ except LastIRQ is generated before image capturing. Last IRQ which means capture-end can be set by following
timing diagram. LastIRQEn is auto-cleared and ,as mentioned, SFR setting in ISR is for next frame command. So,
for adequate last IRQ, you should follow next sequence between LastIRQEn and ImgCptEn /ImgCptEn_CoSc
/ImgCptEnPrSC. It is recommended that ImgCptEn /ImgCptEn_CoSc /ImgCptEnPrSC are set at same time and at
last of SFR setting in ISR. FrameCnt which is read in ISR, means next frame count. On following diagram, last
captured frame count is “1”. That is, Frame 1 is the last-captured frame among frame 0~3. FrameCnt is increased by
1 at IRQ rising.
ISR regionISR regionISR region
VSYNC
ISR region
ImgCptEn(cmd)
LastIRQEn
Capture O Capture O Capture O Capture X
IRQ
Auto cleared
Last IRQ
ISR region ISR region ISR region
FrameCnt
Capture O Capture O
(Frame_3) (Frame_0) (Frame_1) (Frame_3) (Frame_0)
0 1 2 33 0 1
Figure 23-9. Timing diagram for last IRQ
Page view 518
1 2 ... 514 515 516 517 518 519 520 521 522 523 524 ... 595 596

Comments to this Manuals

No comments