z86229 ZiLOG Semiconductor, z86229 Datasheet - Page 19

• Manufacturer Part Number: z86229
• Description: Z86229 Ntsc Line 21 Ccd Decoder
• Manufacturer: ZiLOG Semiconductor

ZiLOG
Z86229 FEATURE SET
The primary features of the Z86229 are summarized below.
More complete descriptions can be found in later sections
of this document.
VBI Data Processing
The Z86229 extracts Line 21 data from the incoming video
signal. All data channels in both video fields are supported.
Incorporating the VBI decoding feature, the Z86229 can
perform the following:
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The video data extracted from Line 21 may be displayed in
different ways according to the user selection and the type
of data. Display choices include:
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General Purpose OSD Modes
Apart from displaying data extracted from Line 21 of the
incoming video, the Z86229 can also display information
Process data from both fields of Line 21 simultaneously
Output XDS data through the serial port while display-
ing selected data
Output XDS data through the serial port raw or filtered
Select XDS filters from a list of pre-programmed val-
ues including Program Rating and Time of Day/Local
Time
Select NTSC or PAL operation
Ten different Line 21 data-display modes; CC1–CC4
and T1–T4, plus two standard templates for XDS dis-
plays
Pop-on, Paint-on, and Roll-up CAPTION displays
Text display default as a full screen, 15 row display
User can vertically reduce and reposition the Text dis-
play as required
Color or Monochrome display mode selectable
XDSG Display Mode (channel grazing): automatic
display of Network Name, Call Letters, Program
Name, Program Length, and Time In Show data pack-
ets
XDSF Display Mode (full information): automatic
display of XDSG Display Mode information in addi-
tion to Program Type (only basic types) and Program
Description
supplied through its serial port. This condition is referred
to as On-Screen Display (OSD) mode. This mode provides:
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Character Set
The Z86229 has a new character set with extended features,
such as:
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Note:
Serial Communications Interface
Communications and control of the Z86229 is possible
through a serial control interface. Two Serial Control
Modes are available with the Z86229 performing as a slave
device. These modes are:
1. A two wire, I
2. A three wire, Serial Peripheral Interface (SPI).
A total of five device pins are dedicated to the serial control
port function. These pins are indicated in Table 7.
Programmable Full Screen OSD: 15 display rows by
32 character columns
Graphics characters
Double-High and Double-Wide characters
Fully programmable display positioning (information
may be placed anywhere on the screen)
Accepts externally supplied (or internally generated
VSYNC to enable OSD even when no video is present)
New font with descenders on lower case letters
Optional display mode using the drop-shadow font (in
other words, fringing appears on each character rather
than a solid, “black box” background)
EIA–608 Extended Characters
EIA–608 Background and Foreground attributes
Special framing and graphics characters for OSD dis-
play
Double-High and Double-Wide character display for
OSD
Fifteen scan lines per character row for OSD and Text
Contact the nearest ZiLOG Sales office for additional in-
formation on how to define your own custom OSD char-
acter set.
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C interface.