Sony XCDSX90 User Manual (XCDV60_V60CR_SX90_SX90CR_U100_U100CR_Technical_Manua - Page 20

Control 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 F0F00600h (FrameRate) F0F00604h (VideoMode) F0F00608h (VideoFormat) F0F0060Ch (IsoChannel / IsoSpeed) XCD-V60/ V60CR A0000000h A0000000h 00000000h 00008003h Data XCD-SX90/ SX90CR 80000000h XCD-U100/ U100CR 60000000h 40000000h A0000000h 40000000h 40000000h 00008003h 00008003h 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 F0F00600h (FrameRate) F0F00604h (VideoMode) F0F00608h (VideoFormat) F0F0060Ch (IsoChannel / IsoSpeed) XCD-V60/ V60CR A0000000h A0000000h 00000000h 02000000h Data XCD-SX90/ SX90CR 60000000h XCD-U100/ U100CR 60000000h 40000000h A0000000h 40000000h 40000000h 02000000h 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 Data 80000000h When the following command is issued video transfer stops. Address F0F00614h Data 00000000h 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 Data 80000000h MultiShot Address F0F0061Ch Data 4000nnnnh 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 20