z89300 ZiLOG Semiconductor, z89300 Datasheet

z89300

Manufacturer Part Number

z89300

Description

Digital Television Controller

Manufacturer

ZiLOG Semiconductor

Datasheet

1.Z89300.pdf (8 pages)

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Download datasheet (73Kb)

DC-4166-00

GENERAL DESCRIPTION

The Z89300/01 Digital Television Controller is an

application- specific controller designed to provide

complete audio and video control of television receivers,

video recorders, and advanced on-screen display facilities.

The Z89301 is the one-time-programmable (OTP) version

of the Z89300.The powerful 12 MHz Z89C00 RISC

processor core allows the user to control the on-board

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 18-word

representation in Character Graphics ROM (CGROM).

The ROM contents are referenced by a 16-bit word stored

in video RAM (VRAM) defining the character type and its

key attributes.

(8-3-93)

P R E L I M I N A R Y

PRELIMINARY

Z89300/01

DIGITAL TELEVISION CONTROLLER

Serial interfacing with the television tuner is provided

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

digital channel tunning adjustments, may be accessed

through the industry standard I

Additional hardware provides the capability to display two

to three times normal size characters. The smoothing logic

contained in the on-screen display circuit improves the

appearance of larger fonts. Fringing circuitry can be

activated to improve the visibiity of text by surrounding the

character lines with a one-pixel border.

RGB outputs provide the direct video signals, and a

blanking output is provided to control the video multiplexor.

Dot clock and verticle line synchronization are normally

obtained from H_FLYBACK and V_FLYBACK, but can be

generated by the Z89300/01 and driven to the external

deflection unit through the bidirectional SYNC ports when

external video synchronization signals are not present.

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.

All nine PWM ports are only available in the 52-pin package.

Only six 8-bit and one 14-bit PWM output pins are available

in the 40-pin package.

The Z89300/01 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

minimal power consumption.

USTOMER

ROCUREMENT

PECIFICATION

C port.

CPS DC-4166-00

Related parts for z89300

z89300 Summary of contents

Page 1

... All nine PWM ports are only available in the 52-pin package. Only six 8-bit and one 14-bit PWM output pins are available in the 40-pin package. The Z89300/01 has two internal 12 MHz VCOs that are referenced 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 ...

Page 2

... GENERAL DESCRIPTION (Continued Functional Block Diagram Z89300/01 CPS DC-4166-00 ...

Page 3

... GND Port04 Port05 Port06 Port07 Port08 Port09 VCC Port10 Port11 Port12 Port13 Port14 Port15 Port16 Port0A Port0B 52-Pin Shrink DIP Configuration Z89300/01 CPS DC-4166-00 PWM8 PWM7 PWM6 PWM5 PWM4 PWM3 PWM2 PWM1 ADC3 CVI/ADC0 LPF XTAL2 GND XTAL1 VCC /RESET Port0F/HalfBlnk ...

Page 4

... B Z89300/01 CPS DC-4166-00 Pad Description 1 Analog Input 8 Reset Signal 1 Analog Input to A/D 4/1 7 14-Bit PWM 7 General-Purpose PWM B 7 General-Purpose PWM A 7 Tone Control 7 Volume Control 7 Brightness Control 7 Contrast Control 7 Color Control ...

Page 5

... PIN DESCRIPTIONS Z89300 (continued) Pin Standard Name Application 52-Pin PORT0 [D] 28 PORT0 [E] 5 PORT0 [F] 36 /HalfBlnk PORT1 [0] LED1_PWR 18 PORT1 [1] LED2_AUD 19 PORT1 [2] LED3_TMR 20 PORT1 [3] TV_VCR 21 PORT1 [4] PWR_CTL 22 PORT1 [5] PWR_DET 23 VCC + 5 Volts 17 38 GND 0 Volts 10 40 XTAL2 41 XTAL1 39 LPF LOOP FILTER 42 V1 RED ...

Page 6

... Bit = 11 Bit = 10 Bit = 01 Bit = 00 70 Level, 10pf Load Condition Bit = 11 Bit = 10 Bit = 01 Bit = 00 70 Level, 10pf Load Z89300/01 CPS DC-4166-00 Limit 4.30V +/– 0.25V 3.20V +/– 0.2V 2.10V +/– 0.15V 0.1V +/– 0.1V < 50 nsec Limit 3.90V +/– 0.25V 2.90V +/– 0.2V 1.90V +/– 0.15V 0.1V +/– ...

Page 7

... Typical Min Max @ 0.2 V 1. 0.1 V 0.8 CC 13.2 0.4 0.16 0.4 0.19 0.4 0.19 V –0.4 4.75 CC –80 –46 –3.0 3.0 0.01 –3.0 3.0 0.02 Z89300/01 CPS DC-4166-00 Units Conditions [ 1. mA, [ =0.75 mA, [ –0. ...

Page 8

... Zilog, Inc. 210 East Hacienda Ave. Campbell, CA 95008-6600 Telephone (408) 370-8000 Telex 910-338-7621 FAX 408 370-8056 Z89300/01 CPS DC-4166-00 ...

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