adv7189b Analog Devices, Inc., adv7189b Datasheet - Page 85

• Manufacturer Part Number: adv7189b
• Description: Multiformat Sdtv Video Decoder
• Manufacturer: Analog Devices, Inc.

Subaddress
0x99
0x9A
0x9B
0x9C
0x9D
0xB2
0xC3
Register
CCAP1
(Read Only)
CCAP2
(Read Only)
Letterbox 1
(Read Only)
Letterbox 2
(Read Only)
Letterbox 3
(Read Only)
CRC Enable
Write
Register
ADC
SWITCH 1
Bit Description
CCAP1[7:0]
Closed caption data register.
CCAP2[7:0]
Closed caption data register.
LB_LCT[7:0]
Letterbox data register.
LB_LCM[7:0]
Letterbox data register.
LB_LCB[7:0]
Letterbox data register.
Reserved
CRC_ENABLE. Enable CRC
checksum decoded from CGMS
packet to validate CGMSD.
Reserved
ADC0_SW[3:0]. Manual muxing
control for ADC0.
ADC1_SW[3:0]. Manual muxing
control for ADC1.
Rev. B | Page 85 of 104
7 6
x x
x x
x x
x x
x x
0 0
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
5
x
x
x
x
x
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
4 3
x
x
x
x
x
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Bits
x
x
x
x
x
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
2
x
x
x
x
x
0
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
x
x
x
x
x
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
x
x
x
x
x
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Comments
CCAP1[7] contains parity
bit for Byte 0
CCAP2[7] contains parity
bit for Byte 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
Set as default
Turn off CRC check
CGMSD goes high with
valid checksum
Set as default
No connection
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
No connection
No connection
AIN7
AIN8
AIN9
AIN10
AIN11
AIN12
No connection
No connection
No connection
No connection
AIN3
AIN4
AIN5
AIN6
No connection
No connection
No connection
No connection
AIN9
AIN10
AIN11
AIN12
No connection
Notes
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.
SETADC_sw_man_
en = 1
SETADC_sw_man_
en = 1
ADV7189B