User Manual
SCSI Commands Reference Manual, Rev. J 53
www.seagate.com General Concepts
2.4.1.1.4.5 Segment pointer sense key specific data
If the sense key is COPY ABORTED, the SENSE KEY SPECIFIC field shall be as shown in table 22.
SKSV bit
The SKSV bit is described in 2.4.1.1.4.1 for descriptor format sense data and in 2.4.1.2 for fixed format sense data.
SD (SEGMENT DESCRIPTOR) bit
The SD bit indicates whether the field pointer is relative to the start of the parameter list or to the start of a segment descriptor.
0 An SD bit set to zero indicates that the field pointer is relative to the start of the parameter list.
1 An SD bit set to one indicates that the field pointer is relative to the start of the segment descriptor indicated by the third and fourth
bytes of the COMMAND-SPECIFIC INFORMATION field.
BPV (BIT POINTER VALID) bit
0 A BPV bit set to zero indicates that the value in the BIT POINTER field is not valid.
1 A BPV bit set to one indicates that the BIT POINTER field specifies which bit of the byte designated by the FIELD POINTER field is in error.
When a multiple-bit field is in error, the BIT POINTER field shall point to the most-significant (i.e., left-most) bit of the field.
FIELD POINTER field
The FIELD POINTER field indicates which byte of the parameter list or segment descriptor was in error.
If the parameter list is in excess of 65 528 bytes in length and SD is set to zero, the FIELD POINTER value may not fit in two bytes provided by the
sense key specific sense data descriptor.
2.4.1.1.4.6 Unit attention condition queue overflow sense key specific data
If the sense key is UNIT ATTENTION, the SENSE KEY SPECIFIC field shall be as shown in table 23
SKSV bit
The SKSV bit is described in 2.4.1.1.4.1 for descriptor format sense data and in 2.4.1.2 for fixed format sense data.
OVERFLOW bit
0 An OVERFLOW bit set to zero indicates that the unit attention condition queue has not overflowed.
1 An OVERFLOW bit set to one indicates that the unit attention condition queue has overflowed.
Table 22 Segment pointer sense key specific data
Bit
Byte
7 6 5 4 3 2 1 0
0
SKSV (1b) Reserved SD Reserved BPV BIT POINTER
1
(MSB)
FIELD POINTER
2
(LSB)
Table 23 Unit attention condition queue overflow sense key specific data
Bit
Byte
7 6 5 4 3 2 1 0
0
SKSV (1b) Reserved
OVERFLOW
1
Reserved
2