Table 359 - SEND MESSAGE(10) command
=============================================================================== | Bit| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |Byte | | | | | | | | | |=============================================================================| | 0 | Operation code (2Ah) | |-----------------------------------------------------------------------------| | 1 | Logical unit number | Reserved | |-----------------------------------------------------------------------------| | 2 | Reserved | |-----------------------------------------------------------------------------| | 3 | Reserved | |-----------------------------------------------------------------------------| | 4 | (MSB) | |--------- Stream selection ---| | 5 | (LSB) | |-----------------------------------------------------------------------------| | 6 | Reserved | |-----------------------------------------------------------------------------| | 7 | (MSB) | |--------- Transfer length ---| | 8 | (LSB) | |-----------------------------------------------------------------------------| | 9 | Control | ===============================================================================The stream selection field specifies a further level of addressing for the data, so that it can be directed by the target to the appropriate data stream.
Please refer to the SEND MESSAGE(6) command for a description of the fields in this command.