User Manual

SCSI Commands Reference Manual, Rev. J 447
www.seagate.com Parameters for direct access devices
ATTACHED PHY CAPABILITIES field
The ATTACHED PHY CAPABILITIES field indicates the incoming SNW-3 phy capabilities bits received in the last SNW-3 as defined in SPL-4. If the
last link reset sequence did not include SNW-3 or was a SATA link reset sequence, then the ATTACHED PHY CAPABILITIES field shall be set to
00000000h.
NEGOTIATED SSC bit
A NEGOTIATED SSC bit set to:
0 indicates that SSC is disabled
1 indicates that SSC is enabled
The NEGOTIATED SSC bit is only valid if the NEGOTIATED PHYSICAL LINK RATE field is greater than or equal to 8h.
NEGOTIATED PHYSICAL LINK RATE field
The NEGOTIATED PHYSICAL LINK RATE field is defined in table 338. If the phy is a physical phy, this field indicates the physical link rate negoti-
ated during the link reset sequence. If the phy is a virtual phy, this field should be set to the maximum physical link rate supported by the
expander device. The negotiated physical link rate may be less than the programmed minimum physical link rate or greater than the pro
-
grammed maximum physical link rate if the programmed physical link rates have been changed since the last link reset sequence.
HARDWARE MUXING SUPPORTED bit
A HARDWARE MUXING SUPPORTED bit set to:
0 indicates that the phy does not support multiplexing
1 indicates that the phy supports multiplexing
This value is not adjusted based on the negotiated physical link rate.