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Z89307

Zilog.
Part Number Z89307
Manufacturer Zilog.
Description DIGITAL TELEVISION CONTROLLER
Published Apr 16, 2005
Detailed Description P R E L I M I N A R Y Z89303/05/07 CPS DC-4222-03 PRELIMINARY CUSTOMERPROCUREMENTSPECIFICATION Z89303/05/07 DIGITALTE...
Datasheet PDF File Z89307 PDF File

Z89307
Z89307

Overview
P R E L I M I N A R Y Z89303/05/07 CPS DC-4222-03 PRELIMINARY CUSTOMERPROCUREMENTSPECIFICATION Z89303/05/07 DIGITALTELEVISIONCONTROLLER GENERAL DESCRIPTION The Z89303/05/07 Digital Television Controllers are application-specific controllers designed to provide complete audio and video control of television receivers, video recorders, with advanced on-screen display facilities.
The Z89303/05/07 are 24K, 16K and 12K ROM versions in 52-pin SDIP packages.
The powerful 12 MHz Z89C00 RISC processor core allows the user to control the onboard peripheral functions and registers using the standard processor instruction set.
The extensive character attributes can be controlled in two modes: by the on-screen display controller character control mode for maximum display control flexibility, and closed caption mode for optimum display of closed caption text.
Closed caption text can be decoded directly from the composite video signal with the assistance of the processor's digital signal processing capabilities and displayed on the screen.
The character representation in this mode allows for a simple attribute control through the insertion of control characters, and each word of RAM specifies two displayed characters.
The character control mode provides access to the full set of attribute controls.
Each word of RAM specifies a single displayed character and basic character attributes, 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 incude underlining, italics, blinking, eight foreground/background colors, character position offset delay, and background transparency.
The 16-bit display character representation allows the modification of some key attributes on a character-by-character basis.
A character's pixel array is stored as a 16- or...


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