245

Z90209/203/202

Z90209/203/202

FEATURES

The Z9020X Family of Digital Television Controllers are

microcontroller family. The devices provides an ideal

performance and reliability solution for consumer and

industrial television applications.

The Z90209 is the ROMless In-Circuit Emulation (ICE )Chip

version of the Z90200 Digital Television Controller Family

used in emulators and development boards.

The device features an 8-bit internal data path controlled

by a Z8 microcontroller, On-Screen Display (OSD) logic

circuits, and Pulse Width Modulators (PWM). On-chip

peripherals include two register mapped I/O ports (Ports 2

and Port 3), interrupt control logic (one software, two

external and three internal interrupts) and a standby mode

recovery input port (Port 3, pin P30).

The OSD control circuits support ten rows by 24 columns

of characters. The character color is specified by character.

The OSD inter-row spacing is variable and can be

programmed from 0 to 15 horizontal scan lines. The OSD

is capable of displaying high resolution (14 x18 dot pattern)

characters.

A 14-bit PWM port provides enough voltage resolution for

a voltage synthesizer tuning system. Ten 8-bit PWM ports

are used for controlling audio signal levels to vary picture

levels.

Three basic address spaces, The Program Memory, Video

RAM, and Register File, support a wide range of memory

configurations.

For applications demanding powerful I/O capabilities, the

Z9020X's dedicated input and output lines are grouped

into three ports, and are configurable under software

control to provide timing, status signals, parallel I/O and an

address/data bus for interfacing to external memory.

To unburden the program from coping with the real-time

problems such as counting/timing and data communication,

the Z9020X offers two on-chip counter/timers with a large

number of user selectable modes.

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

Circuit

Device

Power

V

CC

V

DD

Ground

GND

V

SS

ROM

RAM*

Speed

Package

s

Part

(KB)

(Kbyte)

(MHz)

Type

Z90209

16

236

6

124-Pin PGA

Z90203

16

236

6

42-Pin SDIP

Z90202

8

236

6

42-Pin SDIP

*General-Purpose

s

4.5V to 5.5V Operating Range

s

0

°C to +70°C Temperature Range

s

Low-Power Consumption

s

On-Screen Display (OSD) Logic Circuits

s

One 14-Bit and One 108-Bit Pulse Width Modulator

(PWM) Circuits

s

20 Input/Output Lines

s

Program Memory, Video RAM, and Register File

Address Spaces

s

Two On-Chip Counter/Timers

GENERAL DESCRIPTION