Fujitsu MBC2073RC, MBC2036RC, MBA3300RC Open address frame format, Protocol field, Smp, Stp

SAS Interface

1.5.3 OPEN address frame

Table 1.21 defines the OPEN address frame format used for connection requests.

Table 1.21 OPEN address frame format

	Bit		6	5		4	3		2	1	0
Byte		7
0		INITIATO		PROTOCOL			ADDRESS FRAME TYPE (1h)
		R PORT
1			FEATURES					CONNECTION RATE
2		(MSB)			INITIATOR CONNECTION TAG
3											(LSB)
4					DESTINATION SAS ADDRESS
11
12						SOURCE SAS ADDRESS
19
20					COMPATIBLE FEATURES
21					PATHWAY BLOCKED COUNT
22		(MSB)			ARBITRARION WAIT TIME
23											(LSB)
24					MORE COMPATIBLE FEATURES
27
28		(MSB)					CRC
31											(LSB)

An INITIATOR PORT bit set to one specifies that the source port is acting as a SAS INIT port. An INITIATOR PORT bit set to zero specifies that the source port is acting as a SAS TARG port.

The PROTOCOL field specifies the protocol for the connection being requested and is defined in Table 1.22.

Table 1.22 PROTOCOL field

Code	Description
000b	SMP
001b	SSP
010b	STP
All others	Reserved

62 C141-C013