ADV7180
INPUT CONFIGURATION
There are two key steps for configuring the ADV7180 to
correctly decode the input video.
1.
Use INSEL[3:0] to configure routing and format decoding
(CVBS, Y/C, or YPrPb). For the ADV7180 LQFP-64, see
If the input requirements are not met using the INSEL[3:0]
options, the analog input muxing section must be
configured manually to correctly route the video from the
analog input pins to the ADC. The standard definition
processor block, which decodes the digital data, should be
configured to process either CVBS, Y/C, or YPrPb format.
This is performed by INSEL[3:0] selection.
CONNECT ANALOG VIDEO
SIGNALS TO ADV7180.
Table 10. ADV7180 LQFP-64 INSEL[3:0]
INSEL[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
Video Format
Composite
Composite
Composite
Composite
Composite
Composite
Y/C (S-video)
Y/C (S-video)
Y/C (S-video)
YPrPb
Analog Input
CVBS
→
A
IN
1
CVBS
→
A
IN
2
CVBS
→
A
IN
3
CVBS
→
A
IN
4
CVBS
→
A
IN
5
CVBS
→
A
IN
6
Y
→
A
IN
1
C
→
A
IN
4
Y
→
A
IN
2
C
→
A
IN
5
Y
→
A
IN
3
C
→
A
IN
6
Y
→
A
IN
1
Pb
→
A
IN
4
Pr
→
A
IN
5
Y
→
A
IN
2
Pr
→
A
IN
6
Pb
→
A
IN
3
Not used
2.
SET INSEL[3:0] TO CONFIGURE
VIDEO FORMAT. USE PREDEFINED
FORMAT/ROUTING.
1010
YPrPb
NO
YES
LQFP-64
LFCSP-40
CONFIGURE ADC INPUTS USING
MANUAL MUXING CONTROL BITS:
MUX_0[3:0], MUX_1[3:0], MUX_2[3:0].
SEE TABLE 12.
1011 to 1111
Not used
REFER TO
TABLE 10
REFER TO
TABLE 11
05700-011
Table 11. ADV7180 LFCSP-40 INSEL[3:0]
INSEL[3:0]
0000
0001 to 0010
0011
0100
0101
0110
0111 to 1000
1001
Video Format
Composite
Not used
Composite
Composite
Not used
Y/C (S-video)
Not used
YPrPb
Analog Input
CVBS
→
A
IN
1
Not used
CVBS
→
A
IN
2
CVBS
→
A
IN
3
Not used
Y
→
A
IN
1
C
→
A
IN
2
Not used
Y
→
A
IN
1
Pr
→
A
IN
3
Pb
→
A
IN
2
Not used
Figure 11. Signal Routing Options
INSEL[3:0], INPUT SELECTION, ADDRESS 0x00
[3:0]
The INSEL bits allow the user to select the input format. They
also configure the standard definition processor core to process
composite (CVBS), S-video (Y/C), or component (YPrPb)
format.
INSEL[3:0] has predefined analog input routing schemes that
do not require manual mux programming (see Table 10 and
types to the decoder and select them using INSEL[3:0] only.
The added benefit is that if, for example, CVBS input is selected,
the remaining channels are powered down.
1010 to 1111
Not used
Rev. A | Page 16 of 112
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