Hikmicro HM-TM36-LG/D - Page 42

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4Bytes 280Bytes 4Bytes 1440Bytes
EAV SAV Valid data
FF
00
00
XY
FF
00
00
XY
720(Y)+360(Cb)+360(Cr)
FF
00
00 EAV FF 00 00
SAV
720(Y)+360(Cb)+360(Cr)
FF
00
00 EAV FF
00
00
SAV
720(Y)+360(Cb)+360(Cr)
80
10
80
10
Valid Line
Figure 4-2 Blanking
The sequence of valid data in Figure 4-2 is shown in Figure 4-3: Y : Cb : Cr = 4 : 2 : 2.
It means each pixel has an individual Y value. Neighbor pixels have Cb and Cr of the same value.
Cb0
Y0
Cr0
Y1
Cb1
Y2
Cr1 Y3
Y719Cr359Y718Cb359
Figure 4-3 Data Sequence of Valid Area
The data sequence of a field in PAL is shown in Figure 4-4.
Figure 4-4 Data Line Format
The description of LVCMOS signal is shown in Table 4-2.
Table 4-2 LVCMOS Signal Description
No.
Signal
Function Description
1
Clock
Pixel Clock, transmission frequency: Approx. 27 MHz
2
DATA
Data Signal, 8 bits
Note:
The collection of output data should be sampled at the rising edge of the pixel clock.