TDA9550 PHILIPS [NXP Semiconductors], TDA9550 Datasheet - Page 55

• Manufacturer Part Number: TDA9550
• Description: TV signal processor-Teletext decoder with embedded m-Controller
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
C
The character table is shown in Table 24:-
Table 24 Closed Caption Character Table
Re-definable Characters
A number of Dynamically Re-definable Characters (DRC) are available. These are mapped onto the normal character
codes, and replace the pre-defined OTP character Rom value.
There are 32 DRCs which occupy character codes 80H to 9FH. Alternatively, These locations can be utilized as 16
special graphics characters. The remapping of the standard OSD to the DRCs is activated when the TXT21.DRCS
ENABLE bit is set. The selection of Normal or Special OSD symbols is defined by the TXT21.OSD PLANES.
Each character is stored in a matrix of 16x16x1 (V x H x planes), this allows for all possible character matrices to be
defined within a single location.
2000 Jun 22
HARACTER
TV signal processor-Teletext decoder with
embedded -Controller
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
Additional table locations for normal characters
Table locations for normal characters
Special Characters are in column 8.
T
ABLE
0
™
®
1/2
1
¿
¢
£
à
_
â
ô
û
è
ê
˚
î
SP
%
&
"
+
2
#
$
á
!
´
(
)
-
,
.
/
<
=
>
3
0
1
2
3
4
5
6
7
8
9
?
:
;
@
M
A
C
D
G
H
K
N
O
B
E
F
L
4
J
I
W
Q
R
T
U
V
X
Y
Z
P
S
5
é
ó
[
]
í
Character code columns (Bits 4-7)
m
6
ú
a
b
d
g
h
k
n
o
c
e
f
i
j
l
55
w
Ñ
p
q
u
ñ
n
7
r
v
x
y
z
ç
s
t
8
TDA955X/6X/8X PS/N1 series
9
A
B
Tentative Device Specification
C
D
E
F