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ADV7183A
Table 201. Registers 0x91 to 0x9D
Subaddress
Register
0x91
WSS1[7:0]
. Wide
screen signaling
data. Read-only
register.
0x92
WSS1[7:0]
. Wide
screen signaling
data. Read-only
register
0x93
EDTV1[7:0]
.
EDTV data
register. Read-
only register.
0x94
EDTV2[7:0]
.
EDTV data
register. Read-
only register.
0x95
EDTV3[7:0]
EDTV data
register. Read-
only register.
0x96
CGMS1[7:0]
.
CGMS data
register. Read-
only register.
0x97
CGMS2[7:0]
.
CGMS data
register. Read-
only register.
0x98
CGMS3[7:0]
.
CGMS data
register. Read-
only register.
0x99
CCAP1[7:0]
.
Closed caption
data register.
Read-only
register.
0x9A
CCAP2[7:0]
.
Closed caption
data register.
Read-only
register.
0x9B
Letterbox 1
.
Read-only
register.
0x9C
Letterbox 2
.
Read-only
register.
Rev. A | Page 91 of 104
Bit Description
WSS1[7:0]
Bit
4
x
Comments
Notes
7
x
6
x
5
x
3
x
2
x
1
x
0
x
WSS2[7:6] are
undetermined
WSS2[7:0]
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
EDTV1[7:0]
x
x
x
x
x
x
x
x
EDTV2[7:0]
EDTV3[7:6] are
undetermined
EDTV3[7:0]
x
x
x
x
x
x
x
x
EDTV3[5] is reserved for
future use
x
x
x
x
x
x
x
x
CGMS1[7:0]
x
x
x
x
x
x
x
x
CGMS2[7:0]
CGMS3[7:4] are
undetermined
CGMS3[7:0]
x
x
x
x
x
x
x
x
CCAP1[7]contains parity
bit for byte 0
CCAP1[7:0]
x
x
x
x
x
x
x
x
CCAP2[7]contains parity
bit for byte 0
CCAP2[7:0]
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
LB_LCT[7:0]
Reports the number of
black lines detected at
the top of active video.
Reports the number of
black lines detected in
the bottom half of active
video if subtitles are
detected.
Reports the number of
black lines detected at
the bottom of active
video.
x
x
x
x
x
x
x
x
LB_LCM[7:0]
x
x
x
x
x
x
x
x
0x9D
Letterbox 3
.
Read-only
register.
LB_LCB[7:0]
This feature examines the
active video at the start and
at the end of each field. It
enables format detection
even if the video is not
accompanied by a CGMS or
WSS sequence.