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4.3.3 READ CAPACITY command
Bit
7
Byte
0
1
2-7
8
9
The READ CAPACITY command transfers data related to the media capacity to
INIT. Any value specified for the Partial Medium Indicator (PMI) bit is ignored.
The transfer data is listed in Table 4.8.
Bit
7
Byte
0-3
4-7
Last Logical Block Address indicates the address of the last block that can be
accessed.
Block Length in Bytes indicates the number of bytes per block.
4.3.4 MODE SELECT command
Bit
7
Byte
0
1
2-3
4
5
The MODE SELECT command sets various device operating modes.
The Page Format (PF) bit must be 1. If the PF bit is 0, the command responds
with Check Condition. If the Save Pages (SP) bit is 1, the ODD saves all
parameter values transferred to flash ROM. Parameter List Length specifies the
number of bytes in the mode parameter to be transferred. If the value is 0, the
command ends normally without transferring any data. If the transferred mode
C156-E224-01EN
Table 4.7 READ CAPACITY command
6
5
Operation Code (25h)
LUN
Reserved
Table 4.8 READ CAPACITY data
6
5
Last Logical Block Address
Block Length in Bytes
Table 4.9 MODE SELECT command
6
5
Operation Code (15h)
LUN
Parameter List Length
4
3
2
Reserved
Reserved
Reserved
4
3
2
4
3
2
PF
Reserved
Reserved
Reserved
4.3 SCSI Commands
1
0
PMI
1
0
1
0
SP
4-13
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