C141-E124-01EN3 - 30
3.1.6 MODE SELECT EXTENDED (55)
Bit
Byte 765432 10
0 X‘55’
1LUNPF000SP
2 00000000
3 00000000
4 00000000
5 00000000
6 00000000
7 Parameter List Length (MSB)
8 Parameter List Length (LSB)
9 000000FlagLink
This command performs setting and changing of each type of parameter related to disk drive
physical attributes, data format, timing of SCSI bus disconnect/reconnect processing and error
recovery procedures, etc.
This command's function is the same as that of the Group 0 MOD E SELECT command (Sectio n
3.1.5), except that the format of its data transferred by the INIT differs partially from that of the
(MODE SELECT) data format.
Figure 3.9 shows the configuration of the paramete r list (MO DE SELECT pa rameters) transferr ed
by this command from the INIT. Compared to the 4-byte heade r in the Gr oup 0 M ODE SELECT
command, it is necessary for an 8-byte header to be transferred in this command. The contents of
each field in the header except that the byte positions differ, are the same as in the case of the
Group 0 MODE SELECT command. The contents o f the other parameters (Bloc k descriptor, Page
descriptor) are also the same as in the case o f the Group 0 MODE SELECT command.