SAA5249 Datasheet, PDF (24/44 Pages) NXP Semiconductors – Integrated VIP and Teletext with Background Memory Controller IVT1.1BMCX

Philips Semiconductors
Integrated VIP and Teletext with
Background Memory Controller
Preliminary specification
SAA5249
Register maps
IVT1.1BMCX mode registers R0 to R11 are shown in Table 7. R0 to R10 are write only; R11 is read/write.
Register map (R3), for page requests, is shown in detail in Table 9.
Table 7 Register map (notes 1 to 5)
REGISTER
Adv. control 0
D7
D6
X24 POS FREE
RUN PLL
Mode
1 VCS TO 7 + P/
SCS
8-BIT
Page
2−
−
request
address
Page
3−
−
request
data
−
−
Display
control
(normal)
5 BKGND BKGND IN
OUT
Display
6
control
(newsflash
/subtitle)
BKGND BKGND IN
OUT
Display
mode
7 STATUS CURSOR
BTM
ON
TOP
−
−
Cursor row 9 −
CLEAR
MEM.
Cursor
10 −
−
column
Cursor data 11 D7
D6
Device
status
11B 625/525 ROM VER
SYNC R4
D5
AUTO
ODD/
EVEN
D4
DISABLE
HDR
ROLL
ACQ
DISABLE
ON/OFF PKT 26
−
−
CLEAR
B.M.
PRD4
−
−
COR OUT COR IN
COR OUT COR IN
CONCEA TOP/BTM
L REVEAL HALF
ON
−
−
A0
R4
C5
C4
D5
ROM
VER R3
D4
ROM VER
R2
D3
DISPLAY
SRATUS
ROW
ONLY
DEW/
FULL
FIELD
TB
PRD3
D2
DISABLE
ODD/
EVEN
TCS
ON
START
COLUMN
SC2
PRD2
−
−
TEXT OUT TEXT IN
TEXT OUT TEXT IN
SINGLE
DOUBLE
HEIGHT
−
R3
BOX ON
24
−
R2
C3
C2
D3
D2
ROM VER ROM
R1
VER R0
D1
−
D0
R11/R11B
SELECT
T1
T0
START START
COLUMN COLUMN
SC1
SC0
PRD1
PRD0
−
−
PON OUT PON IN
PON OUT PON IN
BOX ON BOX ON 0
1-23
−
−
R1
R0
C1
C0
D1
TEXT
SIGNAL
QUALITY
D0
VCS
SIGNAL
QUALITY
1996 Nov 07
24