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21
Video Mode Settings
(S800)
Select the video mode you want to use from the tables,
and make the required settings.
As examples, the register settings for Format0, Mode5,
and a frame rate of 60 fps for the XCD-V60; Format2,
Mode2, and a frame rate of 30 fps for the XCD-SX90,
and Format2, Mode5, and a frame rate of 15 fps for the
XCD-U100 are shown.
In addition, an isochronous transfer speed of 800 Mbps,
and isochronous channel 0 are used in these examples.
Normally, set the isochronous transfer speed to 800
Mbps.
When multiple cameras are used simultaneously, set
different isochronous channels for each.
Video Mode Settings
(S400)
When the camera is used under1394A (S400)
conditions, set the isochronous transfer speed to 400
Mbps.
In this case, set the frame rate to 15 fps, as this mode
does not support data transfer of SXGA 30 fps.
Starting/Stopping Video
Transfer
(ContinuousShot)
In the device driver, after the preparations for receiving
isochronous data are made, video transfer starts when
the following commands are issued.
When the following command is issued video transfer
stops.
OneShot and MultiShot
This camera supports both OneShot and MultiShot
commands. With a OneShot command, after outputting
just one single-frame image, the camera enters an
“idling” state. With a MultiShot command, the camera
enters the “idling” state after outputting exactly the
specified number of images.
OneShot
MultiShot
nnnn indicates the number of frames to be output. You
can specify any number between 0001h and FFFFh (1
and 65535). If 0000h is specified, you can think of it as
being 1.
Execution of ContinuousShot, OneShot, and MultiShot
are prioritized as follows. When a command with higher
priority is being executed, the one with the lower priority
is ignored.
ContinuousShot > OneShot > MultiShot
Data
Address XCD-V60/
V60CR
XCD-SX90/
SX90CR
XCD-U100/
U100CR
F0F00600h
(FrameRate)
A0000000h 80000000h 60000000h
F0F00604h
(VideoMode)
A0000000h 40000000h A0000000h
F0F00608h
(VideoFormat)
00000000h 40000000h 40000000h
F0F0060Ch
(IsoChannel /
IsoSpeed)
00008003h 00008003h 00008003h
Data
Address XCD-V60/
V60CR
XCD-SX90/
SX90CR
XCD-U100/
U100CR
F0F00600h
(FrameRate)
A0000000h 60000000h 60000000h
F0F00604h
(VideoMode)
A0000000h 40000000h A0000000h
F0F00608h
(VideoFormat)
00000000h 40000000h 40000000h
F0F0060Ch
(IsoChannel /
IsoSpeed)
02000000h 02000000h 02000000h
Address Data
F0F00614h 80000000h
Address Data
F0F00614h 00000000h
Address Data
F0F0061Ch 80000000h
Address Data
F0F0061Ch 4000nnnnh