|VIDEO CARTRIDGE: 22ER9956
Version AH# ROM Compatibility Chipset
22ER9956/20 00 5.x Green/White
22ER9956/40 00 6.x Green/White
Small cartridge with 120 pins connection.
Feeds decoded video as a digital signal into
TERMS AND ABREVIATIONS
The version of the cartridge is indicated by the number behind
the slash. An increment of
20 means a complete new version occupying a new chipset. The
22ER9143 was only used as a
prototype cartridge for demonstrations and early authoring,
since it does not contain the
extra 1 MB of main RAM. It is not sold onto the consumer market.
The AH indication is a further refinement of indicating a particular
version of a /00, /20
Or /40 edition. An increased AH number does not refer to a different
chipset, but usually
indicated a ROM or firmware update.
A CDI Digital Video Cartridge is capable of showing moving MPEG
video in a resolution of
up To 384x288. This will then fill the entire screen. However,
the MPEG video stream on
a Video-CD is only up to 352x288. This would mean that there
will be small black bars at
both sides of the screen. To accomplish for this, the cartridge
was modified to display
slightly larger pixels when a White Book Video-CD stream was
detected. Note that old car-
tridges can also play back White Book discs, but that the image
does not fill the entire
screen in this case.
Indicates which MPEG decoding chipset is used. The Gate Array
3 is used to have some deco-
Ding problems, for example resulting in the display of green
spots or "ghost sprites" in
the image. Therefore, a new version of the 22ER9141 cartridge
was released (22ER9141/20).
The "I" in IMPEG stands for integrated, since the audio and
video decoding chips are inte-
grated in one IC in this version.
Comment: In combination with a CD-I Player
to play a Video CD(r)
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