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STV6412B 数据表(PDF) 22 Page - STMicroelectronics

部件名 STV6412B
功能描述  Audio/video switch matrix
PDF  32 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STV6412B 数据表(HTML) 22 Page - STMicroelectronics

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I²C bus selection
STV6412B
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Table 21: RGB and fast blanking outputs
Reg
Addr
(Hex)
Description
Bits
Data
Comments
d7
d6
d5
d4
d3
d2
d1
d0
03h
Fast
blanking
control
2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
FB forced to low level
FB forced to high level
FB from encoder
FB from VCR
RGB
selection
2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
Muted
RGB_ENC selected
RGB_VCR selected
Not allowed
RGB gain
2
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
+6 dB gain
+5 dB gain
+4 dB gain
+3 dB gain
1
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
+0 dB extra gain
+3 dB for weak input signals
RGB and
fast blanking
control
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
RGB and FB outputs high
impedance state
RGB and FB outputs active
Table 22: RF and miscellaneous control
Reg
Addr
(Hex)
Description
Bits
Data
Comments
d7
d6
d5
d4
d3
d2
d1
d0
04h
R/C TV
output
selection
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
Red signal selected
Chroma signal selected
RF output:
adder control
and chroma
sub-carrier
filter selection
1
X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
CVBS to RF output
Y + C to RF output
1
X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
Filter not active
Filter active
C_VCR
output control
2
X
X
X
X
X
X
X
X
X
0
0
1
0
1
X
X
X
X
X
X
X
X
X
X
Grounded
Tri-state Mode (High
Impedance)
Active
Low pass
filter control
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
LPF Enabled
LPF Disabled
Slow
blanking
mode
1
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
Normal Mode
SLB TV is driven by SLB
VCR
IT enable
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
No interrupt flag
IT enable



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