2004 Mar 16
193
Philips Semiconductors
Product specification
PC-CODEC
SAA7108E; SAA7109E
19.3
Data slicer and data type control part
The given values force the following behaviour of the SAA7108E; SAA7109E VBI data slicer part:
Closed captioning data is expected at line 21 of field 1 (60 Hz/525 line system)
All other lines are processed as active video
Sliced data are framed by ITU 656 like SAV/EAV sequence (DID[5:0] = 3EH
MSB of SAV/EAV = 1).
Table 241
Data slicer start set-up values
Notes
1.
2.
All X values must be set to logic 0.
Changes for 50 Hz/625 line systems: subaddress 5AH = 03H and subaddress 5BH = 03H.
SUB
ADDRESS
(HEX)
REGISTER FUNCTION
BIT NAME
(1)
START VALUES
7
6
5
4
3
2
1
0
HEX
40
slicer control 1
X, HAM_N, FCE, HUNT_N, X, X,
X, X
LCRn_7 to LCRn_0 (n = 2 to 20)
LCR21_7 to LCR21_0
LCRn_7 to LCRn_0 (n = 22 to 24)
FC7 to FC0
HOFF7 to HOFF0
VOFF7 to VOFF0
FOFF, RECODE, X, VOFF8, X,
HOFF10 to HOFF8
X, X, X, X, X, X, X, X
FVREF, X, DID5 to DID0
0
1
0
0
0
0
0
0
40
41 to 53
54
55 to 57
58
59
5A
5B
line control register 2 to 20
line control register 21
line control register 22 to 24
programmable framing code
horizontal offset for slicer
vertical offset for slicer
field offset and MSBs for
horizontal and vertical offset
reserved
header and data identification
code control
sliced data identification code
reserved
slicer status byte 0
1
0
1
0
0
0
1
1
1
1
0
1
0
0
1
0
1
0
0
0
0
1
1
1
0
0
0
0
1
1
1
0
0
0
0
1
1
1
0
1
1
0
1
1
1
0
1
1
1
1
1
1
0
1
0
1
FF
5F
FF
00
47
06
(2)
83
(2)
5C
5D
0
0
0
0
0
1
0
1
0
1
0
1
0
1
0
0
00
3E
5E
5F
60
X, X, SDID5 to SDID0
X, X, X, X, X, X, X, X
, FC8V, FC7V, VPSV, PPV, CCV,
,
,
, F21_N, LN8 to LN4
LN3 to LN0, DT3 to DT0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
00
00
read-only register
61
62
slicer status byte 1
slicer status byte 2
read-only register
read-only register