3
DSR Series
ID CMD1 CMD2DC CSDATA
1byte 1byte 1byte 1byte 0 to 255byte 1byte
0x31
^^^^
CMD1 CMD20xFF
BYTE1 BYTE254
CSDATA
BYTE0 ......
0x30
^^^^
CMD1 CMD20xFF CSDATA
BYTE255
3-2. DSR-DR1000/A DISK Command
a. ID : Code undefined as CMD1 of Sony VTR 9PIN PROTOCOL.
0x30 and 0x31 are designated as an ID of the extension command for DISK.
ID:0x30 : Indicates that it is a single block with less than 256-byte DATA length. Or it indicates
that it is the last block when transmitting a command by dividing into multiple blocks.
ID:0x31 : Indicates that there is a continuous block when transmitting a command by dividing it
into multiple blocks.
Example: When transmitting a command with data consisting of 256-byte DATA length
First block
Second block
b. DC : Number of bytes of DATA (0 to 255)