Datasheet

Table Of Contents
ADV7188
Rev. A | Page 92 of 112
Bit
1
Address Register Bit Description 7 6 5 43210Comments Notes
Reserved. 0 0 0 0 0 1 Set to default
0 SFL compatible with ADV717x and
ADV73xx encoders
SFL_INV. This bit controls the behavior of the
PAL switch bit.
1 SFL compatible with ADV7190/
ADV7191/ADV7194 encoders
0x41 Resample Control
Reserved. 0 Set to default
0x48 Gemstar Control 1 GDECEL [15:8]. See the Comments column. 0 0 0 0 0 0 0 0
0x49 Gemstar Control 2 GDECEL [7:0]. See the Comments column. 0 0 0 0 0 0 0 0
GDECEL [15:0]. The 16 individual
enable bits that select the lines of
video (even field Lines 10 to 25)
that the decoder checks for
Gemstar-compatible data.
LSB = Line 10; MSB = Line 25.
Default = do not check for Gemstar-
compatible data on any lines
(Lines 10 to 25) in even fields
0x4A Gemstar Control 3 GDECOL [15:8]. See the Comments column.
0 0 0 0 0 0 0 0
0x4B Gemstar Control 4 GDECOL [7:0]. See the Comments column. 0 0 0 0 0 0 0 0
GDECOL [15:0]. The 16 individual
enable bits that select the lines of
video (odd field Lines 10 to 25)
that the decoder checks for
Gemstar-compatible data.
LSB = Line 10; MSB = Line 25.
Default = do not check for Gemstar-
compatible data on any lines
(Lines 10 to 25) in odd fields.
0 Split data into half byte To avoid 0x00 and 0xFF codes. GDECAD. This bit controls the manner in
which decoded Gemstar data is inserted into
the horizontal blanking period.
1Output in straight 8-bit format
0x4C Gemstar Control 5
Reserved.
x x x x 0 0 0 Undefined
0x4D CTI DNR Control 1 0 Disable CTI
CTI_EN. CTI enable.
1 Enable CTI
0 Disable CTI alpha blender
CTI_AB_EN. CTI alpha blend enable. This bit
enables the mixing of the transient improved
chroma with the original signal.
1 Enable CTI alpha blender
00 Sharpest mixing
01 Sharp mixing
1 0 Smooth mixing
CTI_AB [1:0]. CTI alpha blend control. These
bits control the behavior of the alpha-blend
circuitry.
1 1 Smoothest mixing
Reserved. 0 Set to default
0 Bypass the DNR block
DNR_EN. This bit enables or bypasses the
DNR block.
1 Enable the DNR block
Reserved. 1 1 Set to default
0x4E CTI DNR Control 2 CTI_C_TH [7:0]. CTI chroma threshold. These
bits specify how big the amplitude step must
be to be steepened by the CTI block.
0 0 0 0 1 0 0 0
0x50 CTI DNR Control 4 DNR_TH [7:0]. DNR threshold. These bits
specify the maximum edge that is interpreted
as noise and is therefore blanked.
0 0 0 0 1 0 0 0 Set to 0x04 for A/V input; set to
0x0A for tuner input
0001 line of video
0012 lines of video
0105 lines of video
0 1 1 10 lines of video
1 0 0 100 lines of video
1 0 1 500 lines of video
1 1 0 1000 lines of video
CIL [2:0]. Count-into-lock. These bits determine
the number of lines the system must remain
in lock before reporting a locked status.
1 1 1 100,000 lines of video
0 0 0 1 line of video
0 0 1 2 lines of video
0 1 0 5 lines of video
0 1 1 10 lines of video
1 0 0 100 lines of video
1 0 1 500 lines of video
1 1 0 1000 lines of video
COL [2:0]. Count-out-of-lock. These bits
determine the number of lines the system
must remain out-of-lock before reporting
an unlocked status
1 1 1 100,000 lines of video
0 Over field with vertical information SRLS. Select raw lock signal. Selects the
source for determining the lock status.
1 Line-to-line evaluation
0 Lock status set only by
horizontal lock
0x51 Lock Count
FSCLE. F
SC
lock enable.
1 Lock status set by horizontal lock
and subcarrier lock.