Sony XCD-SX90CR Технічний посібник - Сторінка 20

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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.

Address

XCD-V60/

V60CR

F0F00600h

A0000000h

(FrameRate)

F0F00604h

A0000000h

(VideoMode)

F0F00608h

00000000h

(VideoFormat)

F0F0060Ch

00008003h

(IsoChannel /

IsoSpeed)

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.

Address

XCD-V60/

V60CR

F0F00600h

A0000000h

(FrameRate)

F0F00604h

A0000000h

(VideoMode)

F0F00608h

00000000h

(VideoFormat)

F0F0060Ch

02000000h

(IsoChannel /

IsoSpeed)

Data

XCD-SX90/

XCD-U100/

SX90CR

U100CR

80000000h

60000000h

40000000h

A0000000h

40000000h

00008003h

Data

XCD-SX90/

XCD-U100/

SX90CR

U100CR

60000000h

40000000h

A0000000h

40000000h

02000000h

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.

Address

F0F00614h

When the following command is issued video transfer

stops.

Address

F0F00614h

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

Address

F0F0061Ch

MultiShot

Address

F0F0061Ch

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

80000000h

Data

00000000h

Data

80000000h

Data

4000nnnnh