Datasheet
TVP5154A
www.ti.com
SLES214C–DECEMBER 2007–REVISED SEPTEMBER 2010
7.2.34 Output Control
Address 1Fh
Default 00h
7 6 5 4 3 2 1 0
Bit swap Ancillary Enable Parity modifier SAV/EAV modifier Output mode
Output mode:
000 = Mode 0 : Unscaled data clocked by clock 1
001 = Mode 1 : Scaled data clocked by clock 1
010 = Mode 2 : Multiplexed data with separate clocks
011 = Mode 3 : Multiplexed data with clock 1 at 54 MHz
100 = Mode 4 : Unscaled/scaled field toggled data clocked by clock 1
SAV/EAV modifier:
0 = SAV/EAV codes not modified
1 = SAV/EAV MSB modified. MSB = 1 indicates unscaled data, MSB = 0 indicates scaled data
Parity modifier:
0 = Parity calculation includes SAV/EAV MSB.
1 = Parity calculation does not include SAV/EAV MSB.
Ancillary enable:
0 = Ancillary data not enabled
1 = Ancillary data packet added to indicate scaled or unscaled data
Note : Scaled/unscaled ancillary data cannot be enabled at the same time as VBI ancillary data
Bit swap:
0 = chx_out(0) corresponds to data LSB, chx_out(7) corresponds to data MSB
1 = chx_out(0) corresponds to data MSB, chx_out(7) corresponds to data LSB
Table 7-9. Ancillary Data Format and Sequence
BYTE NO. D7 (MSB) D6 D5 D4 D3 D2 D1 D0 (LSB) DESCRIPTION
0 0 0 0 0 0 0 0 0 Ancillary data preamble
1 1 1 1 1 1 1 1 1
2 1 1 1 1 1 1 1 1
3 NEP EP 0 1 DID3 DID2 DID1 DID0 Data ID (DID)
4 1 0 0 0 0 0 0 0 Secondary data ID (SDID)
5 0 1 0 0 0 0 0 1 Number of 32 bit data (NN)
6 Video line # [7:0] Internal data ID0 (IDID0)
Z 0 0 0 0 0 0 Video line # [9:8] Internal data ID1 (IDID1)
8 00h Data byte Data
9 00h Data byte
10 1 0 00h Check sum
11 1 0 0 0 0 0 0 0 Fill byte
EP: Even parity for D0–D5
NEP: Negated even parity
DID: For unscaled data D0–D3 taken from EAV DID value for unscaled data stream register low nibble for field 0 and from high nibble
for field 1
For scaled data D0–D3 taken from EAV DID value for scaled data stream register low nibble for field 0 and from high nibble for
field 1
SDID: Zero data
NN: Indicates 1 D word of data
IDID0: Transaction video line number [7:0]
IDID1: Bit 0/1 = Transaction video line number [9:8]
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).
Copyright © 2007–2010, Texas Instruments Incorporated Internal Control Registers 51
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