GENERAL DESCRIPTION
The Z86129/130/131 is a stand-alone integrated circuit, capable of processing Vertical Blanking Interval (VBI) data from both fields of the video frame in data conforming to the transmission format defined in the Television Decoder Circuits Act of 1990 and in accordance with the Electronics Industry Association specification 608 (EIA-608).
   
FEATURES
■ Complete Stand-Alone Line 21 Decoder for Closed-Captions
    and Extended Data Services (XDS).
■ Preprogrammed to Provide Full Compliance with EIA-
    608 Specifications for Extended Data Services.
■ Automatic Extraction and Serial Output of Special
    XDS Packets such as Time of Day, Local Time Zone,
    and Program Rating (V-Chip).
■ Cost-Effective Solution for NTSC Violence Blocking
    inside Picture-in-Picture (PiP) Windows.
■ Minimal Communications and Control Overhead
    Provides Simple Implementation of Violence Block,
    Closed Caption, and Auto Clock Set Features.
■ Programmable, Full Screen On-Screen Display (OSD)
    for Creating OSD or Captions inside
    a Picture-inPicture (PiP) Window (Z86129 only).
■ I2C Serial Data and Control Communication
■ User-Programmable Horizontal Display Position for
    easy OSD Centering and Adjustment (Z86129 only).