
ADV7189B
Rev. B | Page 83 of 104
Bits
4
1
Comments
Set to default
SFL compatible with
ADV7190/ADV7191/
ADV7194 encoders
SFL compatible with
ADV717x/ADV7173x
encoders
Set to default
GDECEL[15:0]. 16
individual enable bits that
select the lines of video
(even field lines 10 to 25)
that the decoder checks
for Gemstar-compatible
data.
Notes
Subaddress
0x41
Register
Resample
Control
Bit Description
Reserved
SFL_INV. Controls the behavior of
the PAL switch bit.
7
6
0
5
0
3
0
2
0
1
0
0
0
1
Reserved.
GDECEL[15:8]. See the Comments
column.
GDECEL[7:0]. See the Comments
column
0
0
0
0
0
0
0
0
0
LSB = Line 10
MSB = Line 25
Default = Do not
check for Gemstar-
compatible data on
any lines (10 to 25) in
even fields
LSB = Line 10
MSB = Line 25
Default = Do not
check for Gemstar-
compatible data on
any lines (10 to 25) in
odd fields
To avoid 00/FF code.
0x48
Gemstar
Control 1
Gemstar
Control 2
0x49
0
0
0
0
0
0
0
0
0x4A
Gemstar
Control 3
GDECOL[15:8]. See the Comments
column.
GDECOL[7:0]. See above.
0
0
0
0
0
0
0
0
0x4B
Gemstar
Control 4
0
0
0
0
0
0
0
0
GDECOL[15:0]. 16
individual enable bits that
select the lines of video
(odd field lines 10 to 25)
that the decoder checks
for Gemstar-compatible
data.
0
Split data into half byte
GDECAD. Controls the manner in
which decoded Gemstar data is
inserted into the horizontal
blanking period.
1
Output in straight 8-bit
format
0x4C
Gemstar
Control 5
Reserved.
CTI_EN. CTI enable.
x
x
x
x
x
x
x
0
1
0
1
Undefined
Disable CTI
Enable CTI
Disable CTI alpha blender
Enable CTI alpha blender
CTI_AB_EN. Enables the mixing of
the transient improved chroma
with the original signal.
CTI_AB[1:0]. Controls the behavior
of the alpha-blend circuitry.
1
0
1
0
0
1
0
0
0
0
0
1
1
1
0
1
0
1
0
0
0
Sharpest mixing
Sharp mixing
Smooth
Smoothest
Set to default
Bypass the DNR block
Enable the DNR block
Set to default
Set to 0x04 for A/V input;
set to 0x0A for tuner input
Reserved.
DNR_EN. Enable or bypass the DNR
block.
0x4D
CTI DNR
Control 1
Reserved.
CTI_CTH[7:0]. Specifies how big the
amplitude step must be to be
steepened by the CTI block.
DNR_TH[7:0]. Specifies the
maximum edge that is
interpreted as noise and is
therefore blanked.
0x4E
CTI DNR
Control 2
0x50
CTI DNR
Control 4
0
0
0
0
1
0
0
0