Datasheet

Table Of Contents
ADV7188
Rev. A | Page 88 of 112
Bit
1
Address Register Bit Description 7 6 5 43210Comments Notes
0 0 0 Automatic selection of 15 MHz
CSFM [2:0]. C-shaping filter mode. These
bits allow selection from a range of low-
pass chrominance filters, SH1to SH5, and
wideband mode.
0 0 1 Automatic selection of 2.17 MHz
Automatically selects optimum
C-shaping filter for the specified
bandwidth, based on video quality.
010 SH1
011 SH2
100 SH3
101 SH4
110 SH5
111 Wideband mode
00000Reserved; do not use
00001Reserved; do not use
00010SVHS 1
00011SVHS 2
00100SVHS 3
0010 1SVHS 4
00110SVHS 5
00111SVHS 6
01000SVHS 7
01001SVHS 8
01010SVHS 9
01011SVHS 10
01100SVHS 11
01101SVHS 12
01110SVHS 13
01111SVHS 14
10000SVHS 15
10001SVHS 16
10010SVHS 17
1 0 0 1 1 SVHS 18 (CCIR 601)
10100Reserved; do not use
~~~~~Reserved; do not use
WYSFM [4:0]. Wideband Y-shaping filter
mode. These bits allow the user to select
which Y-shaping filter is used for the Y
component of Y/C, YPbPr, B/W input signals;
it is also used when a good quality input
CVBS signal is detected. For all other inputs,
the Y-shaping filter chosen is controlled by
YSFM [4:0].
11111Reserved; do not use
Reserved. 0 0 Set to default
0 Automatic selection of best
wideband Y-shaping filter
0x18 Shaping Filter
Control 2
WYSFMOVR. Enables the use of the manual
WYSFM filter selection.
1 Manual selection of filter using
WYSFM [4:0]
00Narrow
0 1Medium
10Wide
PSFSEL [1:0]. These bits control the signal
bandwidth that is fed to the comb filters (PAL).
11Widest
0 0 Narrow
01 Medium
10 Medium
NSFSEL [1:0]. These bits control the signal
bandwidth that is fed to the comb filters (NTSC).
11 Wide
0x19 Comb Filter Control
Reserved.
1 1 1 1 Set as default
Reserved. 0 0 0 x x x Set to default
0 Use 27 MHz crystal EN28XTAL.
1 Use 28.63636 MHz crystal
0 LLC pin active
0x1D ADI Control 2
TRI_LLC.
1 LLC pin three-stated
Applies to both LLC1 and LLC2.
0x27 Pixel Delay Control 0 0 No delay
0 1 Luma one clock (37 ns) delayed
1 0 Luma two clock (74 ns) early
LTA [1:0]. Luma timing adjust. These bits allow
the user to specify a timing difference between
chroma and luma samples.
1 1 Luma one clock (37 ns) early
CVBS mode LTA [1:0] = 00b
S-video mode LTA [1:0] = 01b
YPrPb mode LTA [1:0] = 01b
Reserved. 0 Set to 0