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6 - 2
SE4750 Integration Guide
Output Data Format
Image data can be read out in a progressive scan. Vertical and horizontal blanking surrounds valid image data, as
shown in
Figure
6-1.
P
P
P
.....................................P
0,0
0,1
0,2
P
P
P
.....................................P
1,0
1,1
1,2
VALID IMAGE
P
P
.....................................P
m-1,0
m-1,1
P
P
.....................................P
m,0
m,1
00 00 00 ..................................... 00 00 00
00 00 00 ..................................... 00 00 00
VERTICAL BLANKING
00 00 00 ..................................... 00 00 00
00 00 00 ..................................... 00 00 00
Image Readout
Figure 6-1
Output Data Timing
Data output is synchronized with the PIXCLK output. When LINE_VALID is high, one 8-bit pixel datum is output
every PIXCLK period.
FRAME_VALID
LINE_VALID
Number of Pixel Clocks
Row Timing and FRAME_VALID / LINE_VALID Signals
Figure 6-2
LINE_VALID
PIX CLK
Blanking
D
OUT (7:0)
Pixel Data Timing Example
Figure 6-3
P
00 00 00 .................. 00 00 00
0,n-1
0,n
P
00 00 00 .................. 00 00 00
1,n-1
1,n
HORIZONTAL
BLANKING
P
00 00 00 .................. 00 00 00
m-1,n-1
m-1,n
P
00 00 00 .................. 00 00 00
m,n-1
m,n
00 00 00 .................. 00 00 00
00 00 00 .................. 00 00 00
VERTICAL/HORIZONTAL
BLANKING
00 00 00 .................. 00 00 00
00 00 00 .................. 00 00 00
. . .
. . .
. . .
P1
A
Q
Valid Image Data
P 0
P 1
P
2
A
Q
A
P2
. . . .
. . . .
. . . .
P 3
P 4
P n-1
. . . .
Blanking
P n
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