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SAS Interface
60 C141-C013
1.5.2 IDENTIFY address frame
Table 1.19 defines the IDENTIFY address frame format used for the identification
sequence. The IDENTIFY address frame is sent after the phy reset sequence
completes if the physical link is a SAS physical link.
Table 1.19 IDENTIFY address frame format
Bit
Byte
7 6 5 4 3 2 1 0
0
Restricted
(for Open
address
frame)
DEVICE TYPE ADDRESS FRAME TYPE (0h)
1 Restricted (for OPEN address frame)
2 Reserved
SSP
INITIATOR
PORT
STP
INITIATOR
PORT
SMP
INITIATOR
PORT
Restricted
(for Open
address
frame)
3 Reserved
SSP
TARGET
PORT
STP
TARGET
PORT
SMP
TARGET
PORT
Restricted
(for Open
address
frame)
4
11
Restricted (for Open address frame)
12
19
SAS ADDRESS
20 PHY IDENTIFIYR
21
27
Reserved
28 (MSB)
31
CRC
(LSB)
The DEVICE TYPE field specifies the type of device containing the phy, and is
defined in Table 1.20.
Table 1.20 DEVICE TYPE field
Code Description
001b End device
010b Edge expander device
011b Fanout expander device
All others Reserved
The ADDRESS FRAME TYPE field shall be set to 0h.