User Manual

SCSI Commands Reference Manual, Rev. J 455
www.seagate.com Parameters for direct access devices
5.3.31 SAS – Transceiver Control (In) subpage (19h/E6h)
5.3.31.1 Introduction
The Transceiver Control (In) subpage of the SAS Protocol-Specific Port mode page (see table 429) is used to return the
transceiver parameter values of a phy. The Transceiver Control subpage shall not be returned for a MODE SENSE command to
return all pages. It shall only be returned to a MODE SENSE command, specifically, for the Transceiver Control subpage (19h/E6h).
The target device shall return a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST and the additional sense
code set to INVALID FIELD IN PARAMETER LIST for a MODE SELECT command issued for this subpage.
Table 429 SAS - Transceiver Control (In) subpage
Bit
Byte
7 6 5 4 3 2 1 0
0 PS SPF (1b) Page Code (19h)
1 SUBPAGE CODE (E6h)
2 (MSB)
PAGE LENGTH (n-3)
3 (LSB)
4 Reserved
5 Reserved PROTOCOL IDENTIFIER (6h)
6 Reserved
7 NUMBER OF PHYS (02h for a dual ported disk drive)
8
Reserved. . .
14
15 TRANSCEIVER CONTROLS MODE DESCRIPTOR LENGTH = 16
16 Phy Transceiver Controls mode descriptor (first) PHY IDENTIFIER = 0
CONTROLLABLE LINK RATE = 08h
. . . . . .
32 Phy Transceiver Controls mode descriptor (first) PHY IDENTIFIER = 0
CONTROLLABLE LINK RATE = 09h
. . . . . .
48 Phy Transceiver Controls mode descriptor (first) PHY IDENTIFIER = 0
CONTROLLABLE LINK RATE = 0Ah
. . . . . .
64 Phy Transceiver Controls mode descriptor (first) PHY IDENTIFIER = 0
CONTROLLABLE LINK RATE = 0Bh
. . . . . .
80 Phy Transceiver Controls mode descriptor (second) PHY IDENTIFIER = 1
CONTROLLABLE LINK RATE = 08h
. . . . . .
96 Phy Transceiver Controls mode descriptor (second) PHY IDENTIFIER = 1
CONTROLLABLE LINK RATE = 09h
. . . . . .
112 Phy Transceiver Controls mode descriptor (second) PHY IDENTIFIER = 1
CONTROLLABLE LINK RATE = 0Ah