Z89302

PRELIMINARY CUSTOMER PROCUREMENT SPECIFICATION Z89302/04/06 DIGITAL TELEVISION CONTROLLER FEATURES Device Z89302 Z89304 Z89306 ROM (KB) 24 16 12 RAM* (Bytes) 640 640 640 Speed MHz 12 12 12 s s s s s s s 1 0°C to +70°C Temperature Range Fully Customized Character Set Character-Control and Closed-Caption Modes Keypad User Control TV Tuner Serial Interface Direct Video Signals Note: * General-Purpose 40-Pin DIP Packages 4.75- to 5.25-Volt Operating Range s GENERAL DESCRIPTION The Z89302/04/06 Digital Television Controllers are designed to provide complete audio and video control of television receivers, video recorders, and advanced onscreen display facilities. The Television Controllers feature a Z89C00 RISC processor core that controls the on-board peripheral functions and registers using the standard processor instruction set. Character attributes can be controlled through two modes: the on-screen display Character-Control Mode and the Closed-Caption Mode. The Character-Control Mode provides access to the full set of attribute controls, allowing the modification of attributes on a character-by-character basis. The insertion of control characters permits direction of other character attributes. The fully customized 512 character set, formatted in two 256 character banks, can be displayed with a host of display attributes that include underlining, italics, blinking, eight foreground/background colors, character position offset delay, and background transparency. Serial ...