z86131 ZiLOG Semiconductor, z86131 Datasheet - Page 21

• Manufacturer Part Number: z86131
• Description: Ntsc Line 21 Decoder
• Manufacturer: ZiLOG Semiconductor

ZiLOG
Z86129/130/131 FEATURE SET
As discussed, the Z86129/130/131 are defined differently
for the requirements of Line 21 Data applications. However
the part number, Z86129, is used to describe the feature set
of the Z86129/130/131. In this description, there are some
descriptions not applicable to the Z86130/131 for the fea-
ture differences listed on page 1.
The primary features of the Z86129 are briefly described
below. More complete descriptions can be found in later
sections of this document.
VBI Data Processing
The Z86129 extracts the data in Line 21 of the incoming
video. All data channels, in both video fields are supported.
Specifically, the Z86129 can:
1. Process data from both fields of Line 21 simultaneous-
2. Output XDS data through the serial port while display-
3. Output XDS data through the serial port raw or fil-
4. XDS filters are selectable from a list of pre-pro-
5. Output line 21 data through serial port raw(Z86130
6. NTSC or PAL operation selectable.
The data extracted from Line 21 of the incoming video by
the Z86129 may be displayed in different ways according
to the user selection and the type of data. The display fea-
tures available on the Z86129 only are:
1. Ten different Line 21 data display modes; CC1–CC4,
2. Pop-on, Paint-on and Roll-up CAPTION displays.
3. TEXT display default is a full screen, 15-row display.
4. User can vertically reduce and reposition the TEXT
5. Color or Monochrome display mode selectable.
6. XDSG Display Mode (channel grazing): automatic
DS007200-TVX0199
ly.
ing selected data.
tered.
grammed values including Program Rating and Time
of Day/Local Time.
only).
T1–T4, plus two standard templates for XDS displays.
display as desired.
display of Network Name, Call Letters, Program
Name, Program Length, and Time In Show data pack-
ets.
P R E L I M I N A R Y
7. XDSF Display Mode (full information): automatic
General Purpose OSD Modes (Z86129 Only)
In addition to displaying data extracted from Line 21 of the
incoming video, the Z86129 can display information sup-
plied through its serial port. This mode is referred to as On-
Screen Display (OSD) display mode. This mode provides:
1. Programmable Full Screen OSD: 15 display rows by
2. Graphics characters.
3. Double-High and Double-Wide characters.
4. Fully programmable display positioning; information
5. Accepts externally supplied, or internally generated
Character Set (Z86129 Only)
The Z86129 has a new character set with extended features,
such as:
1. New font with descenders on lower case letters.
2. Optional display mode using drop shadow font (in oth-
3. EIA–608 Extended Characters.
4. EIA–608 Background and Foreground attributes.
5. Special framing and graphics characters for OSD dis-
6. Double-High and Double-Wide character display for
7. Fifteen scan lines per character row for OSD and
Note: Contact the nearest ZiLOG Sales office for additional in-
Serial Communications Interface
Communications and control of the Z86129/130/131 is
through a serial control interface. Two Serial Control
display of XDSG Display Mode information plus:
Program Type (only basic types), and Program De-
scription.
32 character columns.
may be placed anywhere on the screen.
VSYNC to enable OSD even when no video is
present.
er words, fringing appears on each character rather
than a solid, “black box” background).
play.
OSD.
TEXT.
formation on how to define your own custom OSD char-
acter set.
NTSC Line 21 Decoder
Z86129/130/131
21