Z89318 Zilog., Z89318 Datasheet

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Z89318

Manufacturer Part Number
Z89318
Description
DIGITAL TELEVISION CONTROLLER
Manufacturer
Zilog.
Datasheet
CPS95TV0403 (8/95)
FEATURES
GENERAL DESCRIPTION
The Z89314/318 are members 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 powerful Z89C00 RISC processor core allows users to
control 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 include underlining, italics, blinking,
eight foreground/background colors, character position
offset delay, and background transparency are made
possible through a fully customized 512 character set,
formatted in two 256 character banks.
Part
Number
Z89314
Z89318
*General-Purpose
40-Pin DIP Package
4.5- to 5.0-Volt Operating Range
Z89C00 RISC Processor Core
Z8 ROM
(Kbyte)
16
10
Z8 RAM*
(Kbyte)
512
512
Speed
(MHz)
12
12
CUSTOMER PROCUREMENT SPECIFICATION
Z89314/318
DIGITAL TELEVISION CONTROLLER
Serial interfacing with the television tuner is provided
through the tuner serial port. This version of the Z89300
series does not offer 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.
Receiver functions such as color and volume can be
directly controlled by eight 8-bit pulse width modulated
ports.
Notes:
All Signals with a preceding front slash, "/", are active Low, e.g.:
B//W (WORD is active Low); /B/W (BYTE is active Low, only).
Power connections follow conventional descriptions below:
Connection
0 C to +70 C Temperature Range
Direct Closed Caption Decoding
TV Tuner Serial Interface
Customized Character Set
Character Control Mode
Directly Controlled Receiver Functions
Ground
Power
2
C capability
Circuit
GND
V
CC
Device
CPS95TV0403
V
V
DD
SS
1

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Z89318 Summary of contents

Page 1

... FEATURES Part Z8 ROM Z8 RAM* Number (Kbyte) (Kbyte) Z89314 16 512 Z89318 10 512 *General-Purpose 40-Pin DIP Package 4.5- to 5.0-Volt Operating Range Z89C00 RISC Processor Core GENERAL DESCRIPTION The Z89314/318 are members 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 ...

Page 2

... LPF HSYNC VSYNC Register Addr/Data /Reset CPU ROM Addr ROM Data Functional Block Diagram Z89314/318 CPS95TV0403 PWM PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 Port1 Port 10 Port 11 Port 12 Port 13 Port 14 Port 15 Port 16 OSD BLANK ROM 16K x 16 Z89314 10K x 16 Z89318 ...

Page 3

... Port 09 Port 10 Port 12 Port 13 Port 14 Port 15 Port IRIN Z89314 Z89318 Port 40-Pin DIP Configuration Z89314/318 CPS95TV0403 PWM6 PWM5 PWM4 PWM3 PWM2 ...

Page 4

PIN DESCRIPTION (Continued) Z89314/318 Pin Name Function GND 0 V IRIN Infrared Remote Capture Input ADC[5:0] 4-Bit Analog to Digital Converter Input a PWM[8:1] 8-Bit Pulse Width Modulator Output b Port0[F:0] Bit Programmable Input/Output Ports a ...

Page 5

Oscillator Recommended Circuit Z893XX XTAL1 XTAL2 Z89314/318 CPS95TV0403 5 ...

Page 6

ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Power Supply Voltage CC V Input Voltage ID V Input Voltage IA V Output Voltage O V Output Voltage O I Output Current High OH I Output Current High OH I Output Current Low ...

Page 7

AC CHARACTERISTICS 4 5 Symbol Parameter T C Input Clock Period P T C,T C Clock Input Rise and Fall POR ...

Page 8

... Zilog, Inc. 210 East Hacienda Ave. Campbell, CA 95008-6600 Telephone (408) 370-8000 Telex 910-338-7621 FAX 408 370-8056 Internet: http://www.zilog.com Z89314/318 CPS95TV0403 ...

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