TDA935x Philips, TDA935x Datasheet - Page 3

• Manufacturer Part Number: TDA935x
• Description: TV Signal Processor-Teletext Decoder with Embedded u-Controller
• Manufacturer: Philips

Philips Semiconductors
Data Capture
2001 Jan 18
-Controller
80C51 -controller core standard instruction set and
timing
1 s machine cycle
32 - 128Kx8-bit late programmed ROM
3 - 12Kx8-bit Auxiliary RAM (shared with Display and
Acquisition)
Interrupt controller for individual enable/disable with two
level priority
Two 16-bit Timer/Counter registers
One 16 bit Timer with 8-bit Pre-scaler
WatchDog timer
Auxiliary RAM page pointer
16-bit Data pointer
Stand-by, Idle and Power Down (PD) mode
14 bits PWM for Voltage Synthesis Tuning
8-bit A/D converter
4 pins which can be programmed as general I/O pin,
ADC input or PWM (6-bit) output
Text memory for 0, 1 or 10 pages
In the 10 page versions inventory of transmitted Teletext
pages stored in the Transmitted Page Table (TPT) and
Subtitle Page Table (SPT)
Data Capture for US Closed Caption
Data Capture for 525/625 line WST, VPS (PDC system
A) and Wide Screen Signalling (WSS) bit decoding
Automatic selection between 525 WST/625 WST
Automatic selection between 625 WST/VPS on line 16
of VBI
Real-time capture and decoding for WST Teletext in
Hardware, to enable optimized -processor throughput
Automatic detection of FASTEXT transmission
Real-time packet 26 engine in Hardware for processing
accented, G2 and G3 characters
Signal quality detector for video and WST/VPS data
types
Comprehensive teletext language coverage
Full Field and Vertical Blanking Interval (VBI) data
capture of WST data
TV signal processor-Teletext decoder with
embedded -Controller
3
Display
Teletext and Enhanced OSD modes
Features of level 1.5 WST and US Close Caption
Serial and Parallel Display Attributes
Single/Double/Quadruple Width and Height for
characters
Scrolling of display region
Variable flash rate controlled by software
Enhanced display features including overlining,
underlining and italics
Soft colours using CLUT with 4096 colour palette
Globally selectable scan lines per row (9/10/13/16) and
character matrix [12x10, 12x13, 12x16 (VxH)]
Fringing (Shadow) selectable from N-S-E-W direction
Fringe colour selectable
Meshing of defined area
Contrast reduction of defined area
Cursor
Special Graphics Characters with two planes, allowing
four colours per character
32 software redefinable On-Screen display characters
4 WST Character sets (G0/G2) in single device (e.g.
Latin, Cyrillic, Greek, Arabic)
G1 Mosaic graphics, Limited G3 Line drawing
characters
WST Character sets and Closed Caption Character set
in single device
TDA935X/6X/8X PS/N2 series
Tentative Device Specification