Description - Texas Instruments EUROTEXT CF70200 Manual

UNIVERSAL TELETEXT DECODERS
'EUROTEXT' CF70200

Eight pages of on-chip display RAM

Europe-wide solution

Automatic FLOF & TOP decoding

Flicker-free packet 26 processing on chip

Program delivery control (PDC)

Minimum software requirement

Menu page capability

Instantaneous page memory clear

75 Direct Drive RGB outputs

Digital PLL

Upgrade path from UNITEXT

Direct access to subtitles

Flexible packaging options: 28 DIL,
44 PLCC

1.0 DESCRIPTION

The CF70200 EUROTEXT device is an eight page
intelligent teletext decoder for use with 625 line TV
transmissions having teletext in the Vertical Blanking
Interval (VBI). When used with an Analogue Interface
device (Texas Instruments' CF72306 or CF72416), it
provides a flexible teletext solution incorporating
internal software to implement FLOF and TOP teletext
decoding automatically.
Eurotext supports a comprehensive range of 29 West
and East European languages in a single device. A full
list is shown on Page 13. Other devices are available in
this family of teletext devices that will support Cyrillic
and Hebrew languages and VPS data capture (Table 1).
On-chip processing of packet 26 characters (flicker free) is automatically implemented as required.
All packets of type 26 are processed in 'real time' without the need for any additional memory. This
allows the decoder to store eight pages of teletext irrespective of the language selected and the mode
of operation. On-chip is an 11.5 MIPs micro-coded processor which controls all the teletext
processing requirements, including ghost row processing and TOP table processing. All teletext data
is processed in 'real time'.
The control of the device is by high level simple commands for all features.
DRAFT 11
TEST5
1
SYNC
2
VIDEO
3
DVCC
4
RSTB
5
CLKIN
6
DGND
7
TEST1
8
TEST4
9
TDATA
10
TCLK
11
CSB
12
MUTE
13
TEST2
14
CF70200 28 pin DIL
6 5 4 3 2 1 44 43 42 41 40
DVCC 7
RSTB
8
N/C 9
CLKIN
10
DGND 11
N/C 12
TEST1
13
TEST4
14
N/C 15
TDATA
16
N/C
17
18 19 20 21 22 23 24 25 26 27 28
CF70200 44 pin PLCC
15-Feb-96
'EUROTEXT'
CF70200
28
FLAG2
27 FLAG1
26
REF
25
RGBSET
24
AGND
23
RED
22 GREEN
21 AVCC
20
BLUE
19
BLANK
18
SDA
17
SCL
16 TEST3
15 WIND
RGBSET
39
AGND
38
37 N/C
RED
36
N/C
35
34 GREEN
33 AVCC
BLUE
32
N/C
31
30 BLANK
N/C
29
1
1Q96