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| ADV7188 Datasheet, PDF (14/112 Pages) Analog Devices – Multiformat SDTV Video Decoder with Fast Switch Overlay Support | |||
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ADV7188
Table 10. Input Channel Assignments
Input Channel
Pin
AIN7
41
CVBS7
AIN1
42
CVBS1
AIN8
43
CVBS8
AIN2
44
CVBS2
AIN9
45
CVBS9
AIN3
46
CVBS3
AIN10
57
CVBS10
AIN4
58
CVBS4
AIN11
59
CVBS11
AIN5
60
CVBS5
AIN12
61
Not Available
AIN6
62
CVBS6
ADI-Recommended Input Muxing Control INSEL[3:0]
SCART1-B
YC1-Y
YPrPb1-Y
SCART2-CVBS
SCART1-R
YC2-Y
YPrPb2-Y
SCART1-G
YC3-Y
YPrPb2-Pb
YC1-C
YC2-C
YPrPb1-Pb
YPrPb1-Pr
SCART2-B
SCART1-CVBS
SCART2-R
YC3-C
YPrPb2-Pr
SCART2-G
Table 11. Manual Mux Settings for All ADCs (SETADC_SW_MAN_EN = 1)
ADC0
ADC1
ADC0_sw[3:0] Connected To ADC1_sw[3:0] Connected To ADC2_sw[3:0]
0000
No Connection 0000
No Connection 0000
0001
AIN1
0001
No Connection 0001
0010
AIN2
0010
No Connection 0010
0011
AIN3
0011
AIN3
0011
0100
AIN4
0100
AIN4
0100
0101
AIN5
0101
AIN5
0101
0110
AIN6
0110
AIN6
0110
0111
No Connection 0111
No Connection 0111
1000
No Connection 1000
No Connection 1000
1001
AIN7
1001
No Connection 1001
1010
AIN8
1010
No Connection 1010
1011
AIN9
1011
AIN9
1011
1100
AIN10
1100
AIN10
1100
1101
AIN11
1101
AIN11
1101
1110
AIN12
1110
AIN12
1110
1111
No Connection 1111
No Connection 1111
ADC2
Connected To
No Connection
No Connection
AIN2
No Connection
No Connection
AIN5
AIN6
No Connection
No Connection
No Connection
AIN8
No Connection
No Connection
AIN11
AIN12
No Connection
ADC3_sw[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
ADC3
Connected To
No Connection
No Connection
No Connection
No Connection
AIN4
No Connection
No Connection
No Connection
No Connection
AIN7
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
RGB_IP_SEL, Address 0xF1 [0]
For SCART input, R, G and B signals can be input on either
AIN4, AIN5, and AIN6 or on AIN7, AIN8, and AIN9.
0 (default)âB is input on AIN4, R is input on AIN 5, and G is
input on AIN6.
1âB is input on AIN7, R is input on AIN 8, and G is input on
AIN9.
MANUAL INPUT MUXING
By accessing a set of manual override muxing registers, the
analog input muxes of the ADV7188 can be controlled directly.
This is referred to as manual input muxing. Manual input
muxing overrides other input muxing control bits, for example,
INSEL and SDM_SEL.
Manual muxing is activated by setting the ADC_SW_MAN_EN
bit. It affects only the analog switches in front of the ADCs. This
means if the settings of INSEL and the manual input muxing
registers (ADC0/ADC1/ADC2/ADC3_SW) contradict each
other, the ADC0/ADC1/ADC2/ADC3_SW settings apply and
INSEL/SDM_SEL is ignored.
Manual input muxing controls only the analog input muxes.
INSEL[3:0] still has to be set so the follow-on blocks process the
video data in the correct format. This means INSEL must still
be used to tell the ADV7188 whether the input signal is of
component, YC, or CVBS format.
Restrictions in the channel routing are imposed by the analog
signal routing inside the IC; every input pin cannot be routed to
each ADC. Refer to Figure 6 for an overview on the routing
capabilities inside the chip. The four mux sections can be
controlled by the reserved control signal buses ADC0_SW[3:0],
ADC1_SW[3:0}, ADC2_SW[3:0}, and ADC3_SW[3:0].
Table 11 explains the control words used.
Rev. 0 | Page 14 of 112
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