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PRELIMINARY
S3C6400X RISC MICROPROCESSOR
CAMERA INTERFACE
20-15
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
TIMING DIAGRAM FOR IRQ (MEMORY DATA SCALING MODE)
- MSDMA input can be selected by SFR setting. In this case, IRQ is generated after P-port or C-port DMA
operation
is
completed for per frame. This mode is aware of starting point by user’s SFR setting (ENVID ‘0’
→
‘1’).
Therefore, this mode does not required IRQ of starting point and LastIRQ. FrameCnt is increased by 1 at
ENVID_M_P(=ENVID_M_C) low to rising (‘0’
→
‘1’) and ImgCptEn_PrSC(=ImgCptEn_CoSC) ‘1’
SFR region
SFR region
SFR region
ENVID_MS
SFR region
Preview DMA frame done
Capture O
Capture O
Capture X
IRQ
SFR region
SFR region
SFR region
FrameCnt
0
1
1
2
3
3
0
Capture O
Capture O
(Frame_3)
(Frame_0)
(Frame_2)
(Frame_3)
Capture O
(Frame_1)
ImgCptEn_PrSC
Fr+
Figure 20-14. Timing diagram for IRQ (MSDMA path)