cx25840 Conexant Systems, Inc., cx25840 Datasheet - Page 213

• Manufacturer Part Number: cx25840
• Description: Video Decoder And Broadcast Audio
• Manufacturer: Conexant Systems, Inc.

CX25840/1/2/3 Data Sheet
102284B
8/3/05
VBI Line Control 16
[7:0]
VBI Line Control 17
[7:0]
VBI Frame Code Search Mode
[7:1]
[0]
VBI Alternate Frame Code Type
[7:4]
[3:0]
VBI Alternate 1 Frame Code
[7:0]
Bits
Bits
Bits
Bits
Bits
RW
RW
RZ
RW
RW
RW
RW
Type
Type
Type
Type
Type
0x00
0x00
0000000
0
0000
0000
0x00
Default
Default
Default
Default
Default
VBI_MD_LINE16
VBI_MD_LINE17
RESERVED
FC_SEARCH_MODE
FC_ALT2_TYPE
FC_ALT1_TYPE
FC_ALT1
Name
Name
Name
Name
Name
Conexant
Frame code search mode. Allows dynamic search from frame
code:
0 = Frame code match is declared only if frame code (start code,
data run-in) is found at expected bit position
1 = Frame code match is declared upon discovering the first bit
sequence that matches the expected pattern. Only applies for
common frame code lengths of 3, 8, 12,16 and 24.
16th VBI line data type. Valid programmed values are the same
as in VBI LINE CONTROL 1 register.
17th VBI line data type. Valid programmed values are the same
as in VBI LINE CONTROL 1 register.
When this field matches the VBIMODE setting for a particular
line, the FC_ALT2 frame code is used instead of the default frame
code associated with a given autoconfig mode. This allows using
an alternate frame code for any given autoconfig mode.
When this field matches the VBIMODE setting for a particular
line, the FC_ALT1 frame code is used instead of the default frame
code associated with a given autoconfig mode. This allows using
an alternate frame code for any given autoconfig mode.
Alternate frame code used when VBIMODE matches
FC_ALT1_TYPE.
Description
Description
Description
Description
Description
Address 0x43A
Address 0x438
Address 0x439
Address 0x433
Address 0x434
Register Map
5-71