User Manual

SCSI Commands Reference Manual, Rev. J 269
www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)
3.70.12 Activate deferred microcode mode (0Fh)
In this mode, deferred microcode that has been saved using the download microcode with offsets, select activation events, save,
and defer activate (see 3.70.10) or download microcode with offsets, save, and defer activate mode (see 3.70.11), if any, shall be
activated and no longer considered deferred (see SPC-5).
The MODE SPECIFIC field is reserved.
The the BUFFER ID field, BUFFER OFFSET field, and PARAMETER LIST LENGTH field shall be ignored in this mode.
If there is no deferred microcode that has been saved using the download microcode with offsets, save, and defer activate mode,
then the WRITE BUFFER command shall be terminated with CHECK CONDITION status, with the sense key set to ILLEGAL
REQUEST, and the additional sense code set to COMMAND SEQUENCE ERROR.
3.70.13 Enable expander communications protocol and Echo buffer mode (1Ah)
Receipt of a WRITE BUFFER command with this mode (1Ah) causes a communicative expander to enter the expanded
communications protocol mode. Device servers in SCSI target devices that receive a WRITE BUFFER command with this mode
shall process it as if it were a WRITE BUFFER command with mode 0Ah (see 3.70.9).
The MODE SPECIFIC field is reserved.
3.70.14 Disable expander communications protocol mode (1Bh)
Receipt of a WRITE BUFFER command with this mode (1Bh) causes a communicative expander to exit the expanded
communications protocol mode and return to simple expander operation. Device servers in SCSI target devices that receive a
WRITE BUFFER command with this mode shall terminate the command with CHECK CONDITION status, with the sense key set to
ILLEGAL REQUEST, and the additional sense code set to INVALID FIELD IN CDB.
The MODE SPECIFIC field is reserved.