4.1 Control/Sense Commands
4.1.5 MODE SELECT EXTENDED (55) Bit
Byte 7 6 5 4 3 2 1 0
0 X'55'
1 0 0 0 PF 0 0 0 SP
2 0 0 0 0 0 0 0 0
3 0 0 0 0 0 0 0 0
4 0 0 0 0 0 0 0 0
5 0 0 0 0 0 0 0 0
6 0 0 0 0 0 0 0 0
7 Parameter List Length (MSB)
8 Parameter List Length (LSB)
9 0 0 0 0 0 0 0 0
This command performs setting and changing of each type of parameter related to
disk drive physical attributes, data format, and error recovery procedures, etc.
This command's function is the same as that of the Group 0 MODE SELECT
command (Section 4.1.4), except that the format of its data transferred by the INIT
differs partially from that of the (MODE SELECT) data format.
Table 4.14 shows the configuration of the parameter list (MODE SELECT
parameters) transferred by this command from the INIT. Compared to the 4-byte
header in the Group 0 MODE 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 of the other parameters (Block
descriptor, Page descriptor) are also the same as in the case of the Group 0 MODE
SELECT command.
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