SCSI Description
5–70 Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives
MODE SELECT (6) Command (15h) (continued)
Table 5–34 Disconnect–Reconnect Page — Field Descriptions (continued)
Default
Field Value Description
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 shall not attempt to disconnect once the data
transfer of a command 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 shall not attempt to disconnect once the data
transfer of a command 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 0This field indicates the maximum amount of data that a target may
transfer for a command during the same interconnect in which it
receieves the command.
NOTE: Fully supported and temporary fields are underlined. Unsupported fields are not
underlined. The PS bit is underlined, meaning it will be set on a MODE SENSE command,
since the page is savable.