Datasheet

ADV7189B
Rev. B | Page 85 of 104
Bits
Subaddress Register Bit Description
7 6 5 4 3 2 1 0 Comments Notes
0x99 CCAP1
(Read Only)
CCAP1[7:0]
Closed caption data register.
x x x x x x x x CCAP1[7] contains parity
bit for Byte 0
0x9A CCAP2
(Read Only)
CCAP2[7:0]
Closed caption data register.
x x x x x x x x CCAP2[7] contains parity
bit for Byte 0
0x9B
Letterbox 1
(Read Only)
LB_LCT[7:0]
Letterbox data register.
x x x x x x x 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 x x x x x x 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 x x x x x x 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 0 Set 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 0 0 1 1 Set as default
0 0 0 0 No connection
0 0 0 1 AIN1
0 0 1 0 AIN2
0 0 1 1 AIN3
0 1 0 0 AIN4
0 1 0 1 AIN5
0 1 1 0 AIN6
0 1 1 1 No connection
1 0 0 0 No connection
1 0 0 1 AIN7
1 0 1 0 AIN8
1 0 1 1 AIN9
1 1 0 0 AIN10
1 1 0 1 AIN11
1 1 1 0 AIN12
ADC0_SW[3:0]. Manual muxing
control for ADC0.
1 1 1 1 No connection
SETADC_sw_man_
en = 1
0 0 0 0 No connection
0 0 0 1 No connection
0 0 1 0 No connection
0 0 1 1 AIN3
0 1 0 0 AIN4
0 1 0 1 AIN5
0 1 1 0 AIN6
0 1 1 1 No connection
1 0 0 0 No connection
1 0 0 1 No connection
1 0 1 0 No connection
1 0 1 1 AIN9
1 1 0 0 AIN10
1 1 0 1 AIN11
1 1 1 0 AIN12
0xC3 ADC
SWITCH 1
ADC1_SW[3:0]. Manual muxing
control for ADC1.
1 1 1 1 No connection
SETADC_sw_man_
en = 1