SAA5291

INTEGRATED CIRCUITS DATA SHEET SAA5x9x family Economy teletext and TV microcontrollers Preliminary specification File under Integrated Circuits, IC02 1997 Jul 07 Philips Semiconductors Preliminary specification Economy teletext and TV microcontrollers CONTENTS 1 1.1 1.2 1.3 1.4 1.5 1.6 2 3 4 5 6 6.1 6.2 7 7.1 7.2 7.3 7.4 8 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 8.10 8.11 8.12 8.13 8.14 8.15 8.16 9 9.1 9.2 9.3 9.4 9.5 9.6 FEATURES General Microcontroller Teletext acquisition Teletext Display Additional features of SAA529xA devices Additional features of SAA549x devices GENERAL DESCRIPTION ORDERING INFORMATION QUICK REFERENCE DATA BLOCK DIAGRAM PINNING INFORMATION Pinning Pin description FUNCTIONAL DESCRIPTION Microcontroller 80C51 Features not supported Additional features Microcontroller interfacing TELETEXT DECODER Data slicer Acquisition timing Teletext acquisition Rolling headers and time Error checking Memory organisation of SAA5296/7, SAA5296/7A and SAA5496/7 Inventory page Memory Organisation of SAA5291, SAA5291A and SAA5491 Packet 26 processing VPS Wide Screen Signalling (SAA529xA and SAA549x only) 525-line world system teletext Fastext detection Page clearing Full channel operation Independent data services (SAA5291, SAA5291A, SAA5491 only) THE DISPLAY Introduction Character matrix East/West selection National option characters The twist attribute On Screen Display symbols 2 9.7 9.8 9.9 9.10 9.11 9.12 9.13 9.14 9.15 9.16 9.17 9.18 9.19 9.20 9.21 9.22 9.23 10 10.1 10.2...