5.1 Mode Parameters b. NUMBER OF PHYS Indicates the total number of phys the TARG maintains. The following shows the details of the SAS phy mode descriptor that is reported in Byte 8 and subsequent bytes: Table 5.13 SAS phy mode descriptor format [This page cannot be modified] Bit
Byte 7 6 5 4 3 2 1 0
0 Reserved (x'00')
1 PHY IDENTIFIER (0h or 1h)
2 PHY OPERATION CODE
3 Reserved (x'00')
4 Reserved
(0b) ATTACHED DEVICE TYPE Reserved
('0000'b)
5 Reserved
('0000'b) NEGOTIATED PHYSICAL LINK RATE
(8h or 9h)
6 Reserved
('0000'b)
ATTACH
SSP
INIT
PORT
ATTACH
STP
INIT
PORT
ATTACH
SMP
INIT
PORT
Reserved
(0b)
7 Reserved
('0000'b)
ATTACH
SSP
TARGET
PORT
ATTACH
STP
TARGET
PORT
ATTACH
SMP
TARGET
PORT
Reserved
(0b)
8
15 SAS ADDRESS
16
23 ATTACHED SAS ADDRESS
24 ATTACHED PHY IDENTIFIER
25
31 Reserved
32 PROGRAMMED MINIMUM PHYSICAL
LINK RATE (8h) HARDWARE MINIMUM PHYSICAL
LINK RATE (8h)
33 PROGRAMMED MAXIMUM PHYSICAL
LINK RATE (9h) HARDWARE MAXIMUM PHYSICAL
LINK RATE (9h)
34
41 Reserved
42
43 Vender Specific
44
47 Reserved