参数资料
型号: ADV7183BBSTZ
厂商: Analog Devices Inc
文件页数: 83/100页
文件大小: 0K
描述: IC VIDEO DECODER NTSC 80-LQFP
产品培训模块: Interfacing AV Converters to Blackfin Processors
标准包装: 1
类型: 视频解码器
应用: 投影仪,录音机,安全
电压 - 电源,模拟: 3.15 V ~ 3.45 V
电压 - 电源,数字: 1.65 V ~ 2 V
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(14x14)
包装: 托盘
产品目录页面: 788 (CN2011-ZH PDF)
ADV7183B
Rev. B | Page 83 of 100
Bits
Subaddress
Register
Bit Description
7
6
5
4
3
2
1
0
Comments
Notes
0x97
CGMS2
(Read Only)
CGMS2[7:0]
CGMS data register.
x
0x98
CGMS3
(Read Only)
CGMS3[7:0]
CGMS data register.
x
CGMS3[7:4] are
undetermined.
0x99
CCAP1
(Read Only)
CCAP1[7:0]
Closed caption data register.
x
CCAP1[7] contains parity
bit for byte 0.
0x9A
CCAP2
(Read Only)
CCAP2[7:0]
Closed caption data register.
x
CCAP2[7] contains parity
bit for byte 0.
0x9B
Letterbox 1
(Read Only)
LB_LCT[7:0]
Letterbox data register.
x
Reports the number of
black lines detected at
the top of active video.
0x9C
Letterbox 2
(Read Only)
LB_LCM[7:0]
Letterbox data register.
x
Reports the number of
black lines detected in
the bottom half of
active video if subtitles
are detected.
0x9D
Letterbox 3
(Read Only)
LB_LCB[7:0]
Letterbox data register.
x
Reports the number of
black lines detected at
the bottom of active
video.
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.
Reserved.
0
0Set as default.
0
Turn off CRC check.
CRC_ENABLE. Enable CRC checksum
decoded from CGMS packet to
validate CGMSD.
1
CGMSD goes high with
valid checksum.
0xB2
CRC
Enable
Write
Register
Reserved
0
1
Set as default.
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