TVP5154 Datasheet, PDF (10/78 Pages) Texas Instruments – 4-CHANNEL LOW-POWER PAL/NTSC/SECAM VIDEO DECODER WITH INDEPENDENT SCALERS AND FAST LOCK

TVP5154
4-CHANNEL LOW-POWER PAL/NTSC/SECAM VIDEO DECODER
WITH INDEPENDENT SCALERS AND FAST LOCK
SLES163A – MARCH 2006 – REVISED JULY 2006
Table 4-2. Ancillary Data Format and Sequence
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BYTE
NO.
D7
(MSB)
D6
0
0
0
1
1
1
2
1
1
3
NEP EP
4
NEP EP
5
NEP EP
6
7
0
0
8
9
10
11
•
•
NEP EP
4(N+2)-1 0
0
D5
D4
D3
D2
D1 D0 (LSB)
DESCRIPTION
0
0
0
0
0
0
Ancillary data preamble
1
1
1
1
1
1
1
1
1
1
1
1
0
1
0
DID2
DID1 DID0 Data ID (DID)
F5
F4
F3
F2
F1
F0 Secondary data ID (SDID)
N5
N4
N3
N2
N1
N0 Number of 32 bit data (NN)
Video line # [7:0]
Internal data ID0 (IDID0)
0 Data error Match #1 Match #2 Video line # [9:8] Internal data ID1 (IDID1)
1. Data
Data byte
1st word
2. Data
Data byte
3. Data
Data byte
4. Data
Data byte
•
•
•
•
— 1. Data
Data byte
Nth word
m. Data
Data byte
CS[5:0]
Check sum
0
0
0
0
0
0
Fill byte
EP:
Even parity for D0–D5
NEP: Negated even parity
DID: 91h: Sliced data of VBI lines of first field
53h: Sliced data of line 24 to end of first field
55h: Sliced data of VBI lines of second field
97h: Sliced data of line 24 to end of second field
SDID: This field holds the data format taken from the line mode register of the corresponding line.
NN:
Number of Dwords beginning with byte 8 through 4(N+2). This value is the number of Dwords where
each Dword is 4 bytes.
IDID0: Transaction video line number [7:0]
IDID1: Bit 0/1 = Transaction video line number [9:8]
Bit 2 = Match 2 flag
Bit 3 = Match 1 flag
Bit 4 = 1 if an error was detected in the EDC block. 0 if not.
CS:
Sum of D0–D7 of DID through last data byte
Fill byte: Fill bytes make a multiple of four bytes from byte 0 to last fill byte. For teletext modes, byte 8 is the
sync pattern byte. Byte 9 is 1. Data (the first data byte).
4.10 Raw Video Data Output
The TVP5154 decoder can output raw A/D video data at 2× sampling rate for external VBI slicing. This is
transmitted as an ancillary data block during the active horizontal portion of the line and during vertical
blanking.
10
Functional Description
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