Fujitsu MAT3300FC 用户手册

 

C141-C008 

1-9 

OX_ID; 

Originator Exchange Identifier, assigned by the originator of an 
exchange.  This value is similar to Queue Tag in SCSI and must 
be unique for a pair between the initiator and the drive. 

RX_ID; 

Responder Exchange Identifier, generated by the responder for 
an exchange. 

OFFSET; 

Defines the relative displacement of the first byte of the payload 
from the base address of the command. 

c)  Payload;  Data field, must be multiple of four bytes. 

– 

If the frame is FC-4 Device Data, the payload has SCSI CDB, 
Read/Write Data or status/sense information. 

– 

If the frame is Link Data, the payload has control information for the 
drive or the response data to the initiator. 

d)  CRC;  Calculates without including SOF and EOF delimiters. 

e)  EOF;  End of frame indicates the end of a frame. 

*1:  R_CTL (Routing Control) 

 

The high order bits (bits 31-28) specify the frame type as follows. 

0000 = FC-4 Device_Data frame 

0010 = Extended Link_Data frame 

0011 = FC-4 Link_ Data frame 

0100 = Video_ Data frame 

1000 = Basic Link_ Data frame 

1100 = Link_ Control frame 

Others = Reserved 

 

The low order bits (bits 27-24) specify the Information field values. 

 

Those values have the meaning with combination with the value of the high 
order bits (31-28).