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Z90341

Zilog.
Part Number Z90341
Manufacturer Zilog.
Description DIGITAL TELEVISION CONTROLLER
Published Apr 16, 2005
Detailed Description Zilog P R E L I M I N A R Y Z90341 PRELIMINARY CUSTOMER PROCUREMENT SPECIFICATION Z90341 DIGITAL TELEVISION CONTROLL...
Datasheet PDF File Z90341 PDF File

Z90341
Z90341

Overview
Zilog P R E L I M I N A R Y Z90341 PRELIMINARY CUSTOMER PROCUREMENT SPECIFICATION Z90341 DIGITAL TELEVISION CONTROLLER FEATURES s Part Number Z90341 OTP ROM 64K x 16 RAM (Word) 1K x 16 Speed (MHz) 12 s s s s s s Direct Closed Caption Decoding TV Tuner Serial Interface Customized Character Set Character Control Mode Directly Controlled Receiver Functions V-Chip Decode s s s s 52-Pin Shrink DIP Package 4.
5- to 5.
5-Volt Operating Range Z89C00 RISC Processor Core 0°C to +70°C Temperature Range GENERAL DESCRIPTION The Z90341 is a member of Zilog's family of Digital Television Controllers designed to provide complete audio and video control of television receivers, video recorders, and advanced on-screen display facilities.
The Z90341 features a powerful Z89C00 RISC processor core that controls on-board peripheral functions and registers using the standard processor instruction set.
In closed caption mode, text can be decoded directly from the composite video signal and displayed on the screen with assistance from the processor's digital signal processing capabilities.
The character representation in this mode allows for a simple attribute control through the insertion of control characters.
The character control mode provides access to the full set of attribute controls.
The modification of attributes is allowed on a character-by-character basis.
The insertion of control characters permits direction of other character attributes.
Display attributes, including underlining, italics, blinking, eight foreground/background colors, character position offset delay, and background transparency, are made possible through a fully customized 512 character set.
Serial interfacing with the television tuner is provided through the tuner serial port.
Digital channel tuning adjustments may be accessed through the industrystandard I2C port.
Additional hardware provides the capability to display two to three times normal size characters.
The smoothing logic contained in the on...


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