saa5249 NXP Semiconductors, saa5249 Datasheet - Page 27

• Manufacturer Part Number: saa5249
• Description: Integrated Vip And Teletext With Background Memory Controller Ivt1.1bmcx
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 9 Register map for page requests (R3); notes 1 to 5
Notes
1. Abbreviations are as for Table 5 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 10 Interlace/non-interlace 312/313 line control and ODD/EVEN field detection option; notes 1 and 2
Notes
1. Reverts to interlaced mode if a newsflash or subtitle is being displayed.
2. X = Don't care.
1996 Nov 07
START COLUMN
Integrated VIP and Teletext with
Background Memory Controller
requests. 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
2
3
4
5
6
0
1
T1
0
0
1
1
1
minutes units
minutes tens
hours units
hours tens
DO CARE
DO CARE
DO CARE
page units
DO CARE
DO CARE
DO CARE
DO CARE
magazine
page tens
PRD4
T0
0
1
0
1
1
2
C-bus transmission bytes.
interlaced 312.5/312.5 lines
non-interlaced 312/313 lines (note 1)
non-interlaced 312/313 lines (note 1)
SCS (scan composite sync) mode: FFB leading edge in first broad
pulse of field
SCS (scan composite sync) mode: FFB leading edge in second
broad pulse of field
HOLD
PRD3
27
MU3
HU3
PU3
PT3
X
X
MAG2
PRD2
MU2
PU2
HU2
MT2
PT2
X
RESULT
MAG1
PRD1
MU1
HU1
MT1
Preliminary specification
PU1
HT1
PT1
SAA5249
MAG0
PRD0
MU0
PU0
HU0
MT0
PT0
HT0