SDA9489X Datasheet, PDF (21/102 Pages) List of Unclassifed Manufacturers – PIP IV Advanced SOPHISTICUS High-End Picture-In-Picture ICs

SDA 9489X
SDA 9589X
Preliminary Data Sheet
System Description
The D1.5 mode is suited for displaying split screen on 16:9 tubes keeping the aspect
ratio. The DW1 format covers the full height of the screen.
4.6.6
Multi-PiP Mode
There is a great variety of multi-pip modes available. Up to 11 different still pictures and
one moving picture can be shown. This is useful to give an overview over broadcasted
programmes (e.g. tuner-scan) or for supervising purposes. For multi-PiP modes only
three fixed picture sizes are available (1/9, 1/16 or 1/36). The picture size and
arrangement depends on the display mode (DISPMOD) and not on SIZEHOR or
SIZEVER. Variable scaling is thus not possible in these modes. Because of limited
memory capacity, the number of frozen multi-pictures is limited dependent on picture
size to the number shown in the table below:
picture sizes
1/9
1/16
1/36
maximum number of pictures
(including one live picture)
3
6
12
Table 4-10 Maximum number of pictures in multi-PIP mode
The partial picture that is written is addressed via WRPOS. With INFRM, a frame for
separation of every PiP can be selected. This is adjustable to single or dual PIP mode
(INFRMOD). The current updated picture can be highlighted with PIPHLT. To avoid
garbage pictures after switching from one mode to another the selected picture can be
blanked with PIPBLK. MPIPBG defines wether the picture will be blanked with black or
with the adjusted background color.
For compatibility reasons to other devices, the DISPMOD register is split into two
segments. If a display mode is chosen that is not implemented, the PIP insertion is
switched off automatically (PIPON = ’0’). The sizes of the partial pictures correspond to
the sizes of the inset pictures of the single PIP modes.
Micronas
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