SAA7114HV2T NXP Semiconductors, SAA7114HV2T Datasheet - Page 55

• Manufacturer Part Number: SAA7114HV2T
• Manufacturer: NXP Semiconductors

Specifications of SAA7114HV2T

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Philips Semiconductors
SAA7114_3
Product data sheet
8.5 Image port output formatter (subaddresses 84h to 87h)
The supported VBI data standards are shown in
For lines 2 to 24 of a field, per VBI line, 1 of 16 standards can be selected (LCR24_[7:0] to
LCR2_[7:0] in 57h[7:0] to 41h[7:0]: 23
The definition for line 24 is valid for the rest of the corresponding field, normally no text
data (video data) should be selected there (LCR24_[7:0] = FFh) to stop the activity of the
VBI data slicer during active video.
To adjust the slicers processing to the input signal source, there are offsets in the
horizontal and vertical direction available: parameters HOFF[10:0] 5Bh[2:0] 59h[7:0],
VOFF[8:0] 5Bh[4] 5Ah[7:0] and FOFF[5Bh[7]].
Contrary to the scalers counting, the slicers offsets define the position of the H and V
trigger events related to the processed video field. The trigger events are the falling edge
of HREF and the falling edge of V123 from the decoder processing part.
The relationship of these programming values to the input signal and the recommended
values are given in
Table 15:
The output interface consists of a FIFO for video and for sliced text data, an arbitration
circuit, which controls the mixed transfer of video and sliced text data over the I port and a
decoding and multiplexing unit, which generates the 8-bit or 16-bit wide output data
stream and the accompanied reference and supporting information.
DT[3:0]
62h[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Standard type
teletext EuroWST, CCST
European closed caption
VPS
wide screen signalling bits
US teletext (WST)
US closed caption (line 21) 0.503
(video data selected)
(raw data selected)
teletext
VITC/EBU time codes
(Europe)
VITC/SMPTE time codes
(USA)
reserved
US NABTS
MOJI (Japanese)
Japanese format switch
(L20/22)
no sliced data transmitted
(video data selected)
Data types supported by the data slicer block
Figure 22
Rev. 03 — 17 January 2006
and
Figure
Data rate
(Mbit/s)
6.9375
0.500
5
5
5.7272
5
5
6.9375
1.8125
1.7898
5.7272
5.7272
5
5
2
23.
4 bit programming bits).
Framing Code
(FC)
27h
001
9951h
1E 3C1Fh
27h
001
none
none
programmable
programmable
programmable
programmable
programmable
(A7h)
programmable
none
Table
PAL/NTSC/SECAM video decoder
15.
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
FC window Hamming
WST625
CC625
VPS
WSS
WST525
CC525
disable
disable
general text optional
VITC625
VITC525
NABTS
Japtext
open
disable
SAA7114
check
always
always
optional
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