Technical data

Acer | HDS AMS200 User and Reference Guide 311
D.1.7 FCP
 Frame Format
AMS200 supports the six Information Units (IU) shown in the following table.
Table D.10 Information Unit
No. Name Meaning Support
1 FCP_CMND Transfers SCSI Command or Task Management {
2 FCP_XFER_READY Notifies FCP_DATA will be transferred. {
3 FCP_DATA Transfers Data. {
4 FCP_RSP Transfers Status Information {
5 FCP_CMND+FCP_DATA Transfers SCSI Command and the first Data within a single
Information Unit. (Write Type Command)
×
6 FCP_DATA+FCP_RSP Transfers last Data and the Status Information within a single
Information Unit. (Read Type Command)
×
The format of the standard frame header used in the FCP is shown in Table D.11.
Table D.11 Frame Header Format
Bits/Word 31 to 24 23 to 16 15 to 08 07 to 00
0 R_CTL D_ID
1 Reserved S_ID
2 TYPE F_CTL
3 SEQ_ID DF_CTL SEQ_CNT
4 OX_ID RX_ID
5 RLTV_OFF
R_CTL (Routing control):
This is used to identify the information category of the FCP frame.
1: FCP_DATA (Data In action, Data Out action).
5: FCP_XFER_RDY (Data delivery request).
6: FCP_CMND (Command/Task Management Request).
7: FCP_RSP (Command/Task Management Response).