saa5246a NXP Semiconductors, saa5246a Datasheet - Page 25

• Manufacturer Part Number: saa5246a
• Description: Integrated Vip And Teletext Ivt1.0
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 3 Register map for page requests (R3).
Notes to Table 3
1. Abbreviations are as for Table 1 except for DO CARE bits.
2. When the DO CARE bit is set to logic 1 this means the corresponding digit is to be taken into account for page
3. If HOLD is set LOW, the page is held and not updated
4. Columns auto-increment on successive I
5. “X’ = Don’ t care
Table 4 Interlace/non-interlace 312/313 line control and ODD/EVEN field detection option
Notes to Table 4
1. Reverts to interlaced mode if a newsflash or subtitle is being displayed.
2. 'x' = Don't care.
January 1993
START COLUMN PRD4
0
1
2
3
4
5
6
Integrated VIP and Teletext (IVT1.0)
request. If the DO CARE bit is set to logic 0 the digit is ignored. This allows, for example, ‘normal’ or ‘timed page’
selection.
FFB MODE
TCS ON
x
x
x
0
1
Do care
Magazine
Do care
Page tens
Do care
Page units
Do care
Hours tens
Do care
Hours units
Do care
Minutes tens
Do care
Minutes units
T1
0
0
1
1
1
2
C-bus transmission bytes
T0
0
1
0
1
1
PRD3
HOLD
PT3
PU3
X
HU3
X
MU3
25
interlaced 312.5/312.5 lines
non-interlaced 312/313 lines (note 1)
non-interlaced 312/312 lines (note 1)
SCS (scan composite sync) mode: FFB leading edge in
first broad pulse of field
M7 version onwards
SCS (scan composite sync) mode: FFB leading edge in
second broad pulse of field
M7 version onwards
PRD2
MAG2
PT2
PU2
X
HU2
MT2
MU2
RESULT
PRD1
MAG1
PT1
PU1
HT1
HU1
MT1
MU1
Product specification
SAA5246A
PRD0
MAG0
PT0
PU0
HT0
HU0
MT0
MU0