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Function
exosd_csc_enable
0
1
exosd_csc_mode[1:0], IO Map, Address 0x1B50[6:5]
This signal is used to specify the CSC mode for the Secondary Input Channel CSC. The CSC mode sets the fixed point position of the
CSC coefficients, including a4, b4, c4 and offsets.
Function
exosd_csc_mode[1:0]
00
01
10
11
The characteristic equations for the secondary input CSC are provided in
Out
_
Out
_
Out
_
The CSC on the secondary input channel is illustrated in
exosd_a1
In_A
exosd_a2
In_B
exosd_a3
In_C
The video inputs In_A, In_B and In_C are connected by default to R, G and B. Refer to
can be changed by adjusting the value of exosd_swap_bus_ctrl[2:0].
Rev. B, August 2013
Description
CSC disable
CSC enable
Description
+/- 1.0, -4096 to 4095
+/-2.0, -8192 to 8190
+/- 4.0, -16384 to 16380
+/- 4.0, -16384 to 16380
A
[ 1
12
:
] 0
=
∗
+
A
In
_
A
4096
Equation 7: Secondary Input CSC Channel A Output
B
[ 1
12
:
] 0
=
∗
+
B
In
_
A
In
4096
Equation 8: Secondary Input CSC Channel B Output
C
[ 1
12
:
] 0
=
∗
+
C
In
_
A
In
4096
Equation 9: Secondary Input CSC Channel C Output
x
+
x
x
Figure 48: Secondary Input Channel CSC
Equation
A
[ 2
12
:
] 0
∗
+
In
_
B
In
_
C
4096
B
[ 2
12
:
] 0
∗
+
_
B
In
_
C
4096
C
[ 2
12
:
] 0
∗
+
_
B
In
_
C
4096
Figure
48.
4096
exosd_a4
÷
+
+
134
7,
Equation 8
and
Equation
A
[ 3
12
:
] 0
∗
+
∗
A
[ 4
12
:
] 0
4096
B
[ 3
12
:
] 0
∗
+
∗
B
[ 4
12
:
] 0
4096
C
[ 3
12
:
] 0
∗
+
∗
C
[ 4
12
:
] 0
4096
exosd_csc_mode
4x
2
2x
1
0
Table 16
for more information. The default routing
ADV8003 Hardware Manual
9.
CSC
_
scale
2
CSC
_
scale
2
CSC
_
scale
2
Out_A
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