Z9023106FSC Datasheet, PDF (6/19 Pages) Zilog, Inc. – eZVision 200 Television Controllers with OSD

Z90233, Z90234, and Z90231
eZVision 200 Television Controllers with OSD
2
Product Block Diagram
Figure 1 is the product block diagram for the eZVision 200 television controllers.
16/24 KBytes ROM
Z8 Core
RAM
ADC
PWM
OSD
I²C
I/O Ports
Figure 1. Product Block Diagram
On-Screen Display (OSD) Features
The eZVision 200 television controllers have the following 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
The eZVision 200 television controllers have the following microcontroller fea-
tures:
• 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
PS010703-0502