Z89301 Zilog., Z89301 Datasheet

Z89301

Manufacturer Part Number

Z89301

Description

DIGITAL TELEVISION CONTROLLER

Manufacturer

Zilog.

Datasheet

1.Z89301.pdf (8 pages)

Current page: 1 of 8
Download datasheet (87Kb)

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 Z89301

Z89301 Summary of contents

Page 1

... 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 ...

Page 2

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

Page 3

Port 40-Pin DIP Configuration PWM9 IRIN Port18 Port19 Port0E Port/ADC2 Port01 Port02 Port03 GND Port04 Port05 Port06 Port07 Port08 Port09 VCC Port10 Port11 Port12 Port13 Port14 Port15 Port16 Port0A ...

Page 4

PIN DESCRIPTIONS Z89300 Pin Standard Name Application 52-Pin CVI/ADC0 COMP_VID 43 /RESET RESET 37 ADC3 A/D 44 Port1 [7] 35 /ADC1 PWM9 BALANCE/ 1 VST PWM8 PWMB 52 PWM7 PWMA 51 PWM6 TONE 50 PWM5 VOLUME 49 PWM4 BRIGHT 48 ...

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 ...

Page 6

V1, V2, V3 ANALOG OUTPUT Specifications V = 5.25V 5.25V CC Output Voltage Settling Time V1, V2, V3 ANALOG OUTPUT Specifications V = 4.75V 4.75V CC Output Voltage Settling Time ...

Page 7

DC CHARACTERISTICS 4. 5.25V A CC Symbol Parameter V Input Voltage Low IL V Input Voltage High IH V Schmitt Hysteresis HY V Maximum Pull-Up Voltage ...

Page 8

Zilog, Inc. All rights reserved. No part of this document may be copied or reproduced in any form or by any means without the prior written consent of Zilog, Inc. The information in this document is subject ...

Related keywords

Z89301 datasheet
Z89301 data sheet
Z89301 pdf datasheet
Z89301 component
Z89301 part
Z89301 distributor
Z89301 RoHS
Z89301 datasheet download