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SCSI Description
Maxtor Atlas 10K III 5-51
Fully supported and temporary fields are underlined. Unsupport-
ed fields are not underlined. The PS bit is underlined, meaning
it will be set on a MODE SENSE command, since the page is
savable.
EMDP 0 Enable MODIFY DATA POINTER.
Fairness
Arbitration
111b
Indicates whether or not the target should use fair or unfair (e.g., prior-
ity) arbitration when beginning the interconnect tenancy.
Value
Description
000b
Disables the fairness algorithm. A fixed priority scheme based on the
SCSI ID assigned is used.
Non-Zero
Any non-zero value enables the fairness algorithm (SCSI SPI-2 ANSI
standard, Appendix B).
DImm 0
Disconnect Immediate. When set to a 1, to reduce on-bus time, the
drive is forced to disconnect from the SCSI Bus after a SCSI Command
is received. Disconnect Immediate works only when a typical, error-free
command is received. Disconnect Immediate does not apply in excep-
tion conditions (for example, SDTR received, error, etc.).
DTDC Data Transfer Disconnect Control. This field of three bits defines further restrictions
when a disconnect is permitted. These are as follows:
Value Description
000b
Data transfer disconnect control is not used. Disconnect is controlled
by other fields in this page.
001b
A target will not attempt to disconnect once the data transfer of a com-
mand has started until all data of the command has been transferred.
The connect time limit and bus inactivity limit are ignored during the
transfer.
010b Reserved
011b
A target will not attempt to disconnect once the data transfer of a com-
mand has started, until the command is complete. The connect time
limit and bus inactivity limit are ignored once the transfer has started.
First Burst
Size
0
This field indicates the maximum amount of data that a target may
transfer for a command during the same interconnect in which it re-
ceives the command.