PCA84C846

INTEGRATED CIRCUITS DATA SHEET PCA84C646; PCA84C846 Microcontrollers for TV tuning control and OSD applications Preliminary specification Supersedes data of June 1994 File under Integrated Circuits, IC14 1995 Jun 15 Philips Semiconductors Preliminary specification Microcontrollers for TV tuning control and OSD applications CONTENTS 1 1.1 1.2 2 3 4 5 5.1 5.2 6 6.1 6.2 7 7.1 7.2 8 9 9.1 9.2 9.3 9.4 10 10.1 10.2 10.3 10.4 11 11.1 FEATURES PCF84CXXXA kernel VST and OSD derivative GENERAL DESCRIPTION ORDERING INFORMATION BLOCK DIAGRAM PINNING INFORMATION Pinning Pin description RESET Reset trip level Reset status ANALOG CONTROL 6 and 7-bit PWM outputs (PWM00 to PWM07) VST control 14-bit PWM DAC AFC INPUT OSD (ON SCREEN DISPLAY) FUNCTION Features Horizontal display position control Vertical display position control Clock generator DISPLAY RAM ORGANIZATION Description of display RAM codes Loading character data into display RAM Writing character data to display RAM Default value of the display character CHARACTER ROM Character ROM organization 12 12.1 12.2 12.3 12.4 12.5 12.6 12.7 13 14 14.1 14.2 15 16 17 18 19 20 21 22 23 24 25 26 27 28 PCA84C646; PCA84C846 OSD CONTROL REGISTERS Derivative Register 22 (CON1) Derivative Register 23 (CON2) Derivative Register 33 (CON3) Derivative Register 34 (CON4) Derivative Register 35 (VPOS) Derivative Register 36 (HPOS) Derivative Register 37 (BCC) COMBINATION OF TWO OR MORE FONT CELLS TO FORM A NEW FONT OSD CLOCK IN DIFFERENT TV STANDARDS Ma...