Z9023106PSC 데이터 시트보기 (PDF) - Zilog

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Z9023106PSC

eZVision 200 Television Controller with On-Screen Display

Zilog 

Z90233, Z90234, and Z90231

eZVision 200 Television Controller with

On-Screen Display

PB006903-0903

Product Brief

Product Block Diagram

16/24 KBytes ROM

Z8 Core

RAM

ADC

PWM

OSD

I2C

I/O Ports

On-Screen Display (OSD)

Features

• Displays of up to 10 rows by 24 columns with

256 characters

• Provides character cell resolution of 14 pixels

by 18 scan lines

• Offers variable inter-row spacing from 0–15

horizontal scan lines

• Uses color palette table to program foreground

and background of character

Microcontroller Features

• Incorporates Z8® MCU core at 6 MHz

• Z90233 and Z90234 have 16K and 24K

masked ROM, respectively

• 236 bytes of system RAM

• Ten 6-bit pulse width modulators

• One 14-bit pulse width modulator

• On-chip infrared (IR) capture registers

• Four channels of 4-bit analog-to-digital con-

verter

• 27 general-purpose I/O pins

• Provides I2C master serial communication port

• 42-pin SDIP and 44-pin PQFP packages

• Can be emulated with 124-pin PGA package

(Z90239)

General Description

The Z90233/Z90234 and Z90231 are the ROM and

OTP versions of the eZVision 200 television

controller with OSD. Based on ZiLOG’s powerful

Z8 architecture, the Z90233/Z90234 and Z90231

contain 24 KB of program memory. The following

enhanced features are included:

• Flexible inter-row spacing

• Higher character cell resolution (14 x 18)

• Background mesh effect

• Dedicated infrared capture registers

• On-chip analog-to-digital converter

• Hardware master mode I2C interface

The familiar Z8 architecture, in combination with

these advanced features, makes the eZVision 200

an ideal choice for midrange televisions in both

PAL and NTSC markets.

The eZVision 200 family consists of three basic

device types:

• The Z90233 and Z90234 masked ROM

• The Z90231 OTP

• The Z90239 In-Circuit Emulator (ICE) chip

The OTP supports a field-programmable 24 KB

program ROM. The ICE chip is used in the Z90239

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