1

Z90110/120/130

CP95TEL1300

P R E L I M I N A R Y

CP95TEL1300 (10/95)

FEATURES

GENERAL DESCRIPTION

The Z901XX 40-pin Digital Television Controller is a cost-

family. The device provides an ideal performance and

reliability solution for consumer and industrial television

applications.

The Z901XX offers mask-programmed ROM, which en-

ables the Z8 microcontroller to be used in a high-volume

production application device embedded with a custom

program (customer-supplied program) and combines

to

provide support for mid-range and low-end TV applica-

tions.

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 six rows by 20 columns

of characters. The character color is specified by row. One

of the eight rows is assigned to show two kinds of colors for

bar type displays such as volume control. The OSD is

capable of displaying either low resolution (5x7 dot pattern)

or high resolution (11x15 dot pattern) characters.

A 14-bit PWM port provides enough voltage resolution for

a voltage synthesizer tuning system. Three 6-bit PWM

ports are used for controlling audio signal levels, and

Three 8-bit PWM ports used 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

Z901XX'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 Z901XX 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

Z90110/120/130

ROM

RAM*

Speed

n

Part

(KB)

(Kbyte)

(MHz)

Z90110

4

236

4

Z90120

6

236

4

Z90130

8

236

4

*General-Purpose

n

40-Pin DIP Package

n

4.5V to 5.5V Operating Range

n

0

°C to +70°C Temperature Range

n

Low-Power Consumption

n

On-Screen Display (OSD) Logic Circuits

n

One 14-Bit and Three 6-Bit Pulse Width Modulator

(PWM) Circuits

n

24 Input/Output Lines

n

Program Memory, Video RAM, and Register File

Address Spaces

n

Two On-Chip Counter/Timers