BIST Activate FIS - Bidirectional(58h)

BIST Activate FIS - Bidirectional:

		31		30	29	28	27	26	25	24		23	22		21	20		19		18		17		16	15	14		13		12		11	10	9	8	7	6	5	4	3	2	1	0
	0		Reserved								Pattern Definition														R		R		R		R	PM Port				FIS Type (58h)
											T			A	S		L		F		P		R	V
	1		Data1 [31:24]								Data1 [23:16]														Data1 [15:8]											Data1 [7:0]
	2		Data2 [31:24]								Data2 [23:16]														Data2 [15:8]											Data2 [7:0]

FIS Type - Set to a value of 58h. Defines the rest of the FIS fields.

PM Port – When an endpoint device is attached via a Port Multiplier, specifies the device port address that the FIS should be delivered to or is received from. This field is set by the host for Host to Device transmission and this field is set by the Port Multiplier for Device to Host transmission. Endpoint devices shall set this field to 0h for Device to Host transmissions.

R - Reserved – shall be cleared to zero.

Pattern Definition

F – Far End Analog (AFE) Loopback (Optional)

L - Far End Retimed Loopback* Transmitter shall insert additional ALIGN Pprimitives

T - Far end transmit only mode

A - ALIGN P Bypass (Do not Transmit ALIGN P primitives) (valid only in combination with T Bit).

S - Bypass Scrambling (valid only in combination with T Bit)

P - Primitive bit. (valid only in combination with the T Bit) (Optional)

V - Vendor Specific Test Mode.  Causes all other bits to be ignored

Data1 – Dword #1 of data information used to determine what pattern is transmitted as a result of the BIST Activate FIS. Applicable only when the T bit is set to one.

Data2 - Dword #2 of data information used to determine what pattern is transmitted as a result of the BIST Activate FIS. Applicable only when the T bit is set to one.