Fujitsu MAP3147 Computer Drive User Manual


 
3.1 Control/Sense Commands
C141-E167 3 -
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Figure 3.9 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.
Header
Bit
Byte
76543210
0 X‘00’
1 X‘00’
2 X‘00’ (Medium Type)
3
×
00
×
0000
4 X‘00’
5 X‘00’
6 X '00' (Block Descriptor Length: LSB)
7 X‘00’ or X‘08’ (block descriptor length: MSB)
Block Descriptor
Bit
Byte
76543210
0 Data Block Count (MSB)
1 Data Block Count
2 Data Block Count
3 Data Block Count (LSB)
4 X‘00’
5 Data Block Length (MSB)
6 Data Block Length
7 Data Block Length (LSB)