CP96TEL1803 (9/96)

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P R E L I M I N A R Y

FEATURES

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40-Pin DIP Packages

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4.75- to 5.25-Volt Operating Range

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0

°C to +70°C Temperature Range

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Fully Customized Character Set

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Character-Control and Closed-Caption Modes

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Keypad User Control

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TV Tuner Serial Interface

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Direct Video Signals

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 on-

screen 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 interfacing with the television tuner is provided

through the tuner serial port. Other serial devices, such as

digital channel tuning adjustments, may be accessed

User control can be monitored through the keypad

scanning port, or the 16-bit remote control capture

register. Receiver functions such as color and volume can

be directly controlled by eight 8-bit pulse width modulated

ports.

The Z89302/04/06 has two internal 12 MHz VCOs that are

referenced to a 32 kHz internal oscillator to provide the

system clock. In Sleep Mode, the controller uses the

32 kHz clock for the system clock to reduce power

consumption. The processor can be suspended by placing

it into STOP Mode when main power is not available for

low-power consumption.

Z89302/04/06

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Device

ROM

(KB)

RAM*

(Bytes)

Speed

MHz

Z89302

24

640

12

Z89304

16

640

12

Z89306

12

640

12

Note: * General-Purpose