UG-707
ADV8005 Hardware Reference Manual
vid_csc_enable
, IO Map,
Address 0x1B30[7]
This bit is used to control the Primary Input Channel CSC.
Function
vid_csc_enable
Description
0 (default)
CSC disable
1
CSC enable
vid_csc_mode[1:0]
, IO Map,
Address 0x1B30[6:5]
This signal is used to specify the CSC mode for the Primary Input Channel CSC. The CSC mode sets the fixed point position of the CSC
coefficients, including a4, b4, c4 and offsets.
Function
vid_csc_mode[1:0]
Description
00 (default)
+/- 1.0, -4096 to 4095
01
+/-2.0, -8192 to 8190
10
+/- 4.0, -16384 to 16380
11
+/- 4.0, -16384 to 16380
The characteristic equations for the primary input CSC are provided in
and
Equation 4: Primary Input CSC Channel A Output
Equation 5: Primary Input CSC Channel B Output
Equation 6: Primary Input CSC Channel C Output
The CSC on the primary input channel is illustrated in
Figure 43: Primary Input Channel CSC
The video inputs In_A, In_B and In_C are connected by default to R, G and B. Refer to
for more information. The default routing can
be changed by adjusting the value of
scale
CSC
A
A
C
In
A
B
In
A
A
In
A
Out
_
2
]
0
:
12
[
4
4096
]
0
:
12
[
3
_
4096
]
0
:
12
[
2
_
4096
]
0
:
12
[
1
_
_
∗
+
∗
+
∗
+
∗
=
scale
CSC
B
B
C
In
B
B
In
B
A
In
B
Out
_
2
]
0
:
12
[
4
4096
]
0
:
12
[
3
_
4096
]
0
:
12
[
2
_
4096
]
0
:
12
[
1
_
_
∗
+
∗
+
∗
+
∗
=
scale
CSC
C
C
C
In
C
B
In
C
A
In
C
Out
_
2
]
0
:
12
[
4
4096
]
0
:
12
[
3
_
4096
]
0
:
12
[
2
_
4096
]
0
:
12
[
1
_
_
∗
+
∗
+
∗
+
∗
=
4x
2x
+
÷
+
+
x
x
x
vid_a1
vid_a2
vid_a3
vid_a4
4096
vid_csc_mode
0
1
2
Out_A
In_A
In_B
In_C
Rev. A | Page 84 of 317
