Sony 70AP Car Stereo System User Manual


 
5
DSR Series
[System related commands]
0x00 to 0x07 are the ones that the upper four bits of CMD1 of the Sony VTR 9PIN PROTOCOL is
shifted to four bits rightward. The content is the same as that of the Sony VTR 9PIN PROTOCOL.
0x10 to 0x12 are in a category related to parameter settings and requests unique to the device.
[Drive related commands]
0x13 to 0x15 are in a category related to controls or parameter settings and requests for the DISK DE-
VICE that the device has. Drive ID is added to all the commands in the category, and the drive ID
specifies a target DISK DEVICE.
[Port related commands]
0x16 to 0x18 are in a category related to controls or parameter settings and requests for the logical port
that the device has. Port ID is added to all the commands in the category, and the port ID specifies a
target port.
[File related commands]
0x19 to 0x1B are in a category related to controls or parameter settings and requests for the opened file.
File handle is added to all the commands in this category, and the file handle specifies a target file.
[Device dependent commands]
0xFx (0xF0 to 0xFF) is in a category that allows defining the commands that depends on the device.
However, some commands do not fall into these categories.