Datasheet

Table Of Contents
ADV7188
Rev. A | Page 93 of 112
Bit
1
Address Register Bit Description 7 6 5 43210Comments Notes
0x69 Configuration 1 0 0 INSEL selects analog input muxing
01CompositeAIN11
1 0 S-video—Y on AIN10 and C on
AIN12
SDM_SEL [1:0]. Y/C and CVBS autodetect
mode select.
1 1 Composite/S-video autodetect
Composite on AIN11
Y on AIN11
C on AIN12
Reserved. 0 0 0 0 0 x
Reserved. 0 1 1 Reserved
0 Disables STDI functionality STDI_LINE_COUNT_MODE.
1 Enables STDI functionality
0x86 STDI Control
Reserved.
0 0 x 0
Reserved. 0 0 0 0 Set to default
0 0 0 LLC1 (nominally 27 MHz) selected
output on LLC1 pin
LLC_PAD_SEL [2:0]. These bits enable manual
selection of a clock for the LLC1 pin.
1 0 1 LLC2 (nominally 13.5 MHz)
selected output on LLC1 pin
For 16-bit 4:2:2 out, OF_SEL [3:0] = 0010.
0x8F Free-Run Line
Length 1
Reserved. 0 Set to default
0x99 CCAP1 (Read Only) CCAP1 [7:0]. Closed caption data bits. x x x x x x x x CCAP1 [7] contains parity bit for
Byte 0
Only for use with VBI System 2
0x9A CCAP2 (Read Only) CCAP2 [7:0]. Closed caption data bits. x x x x x x x x CCAP2 [7] contains parity bit for
Byte 0
Only for use with VBI System 2
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 end of each field.,
enabling format detection even if
the video is not accompanied by a
CGMS or WSS sequence.
BL [13:8]. Block length data register. x x x x x x BL [13:0] reports the number of
clock cycles in a block of eight
lines of incoming video
Data is valid only if STDI_DVALID is 1 and
STDI_LINE_COUNT_MODE is set to 1.
Reserved x Reserved
0 Indicates that BL [13:0], LCF [10:0],
and LCVS [4:0] are not valid
parameters
0xB1 Standard Ident 1
(Read Only)
STDI_DVALID. Standard identification data
valid readback.
1 Indicates that BL [13:0], LCF [10:0],
and LCVS [4:0] are valid parameters
0xB2 Standard Ident 2
(Read Only)
BL [7:0]. Block length data register. x x x x x x x x BL [13:0] reports the number of
clock cycles in a block of eight
lines of incoming video
LCF [10:8]. Line count in field. x x x Reports the number of lines
between two vsyncs or one field
Data is valid only if STDI_DVALID is 1 and
STDI_LINE_COUNT_MODE is set to 1.
0xB3 Standard Ident 3
(Read Only)
LCVS [4:0]. x x x x x Reports the number of lines within
a vertical synchronization period
Data is valid only if STDI_DVALID is 1 and
STDI_LINE_COUNT_MODE is set to 1.
0xB4 Standard Ident 4
(Read Only)
LCF [7:0]. x x x x x x x x Data is valid only if STDI_DVALID is 1 and
STDI_LINE_COUNT_MODE is set to 1.
0xC3 ADC Switch 1 0000No connection
0001AIN1
0010AIN2
0011AIN3
0100AIN4
0101AIN5
0110AIN6
0111No connection
1000No connection
1001AIN7
1010AIN8
1011AIN9
1100AIN10
1101AIN11
1110AIN12
ADC0_SW [3:0]. Manual muxing control
for ADC0.
1111No connection
Set ADC_SW_MAN_EN to 1