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4.3 SCSI Commands
C156-E224-01EN 4-41
4.3.26 READ LONG command
Table 4.71 READ LONG command
Bit
Byte
76543210
0 Operation Code (3Eh)
1LUN Reserved
2-5 Logical Block Address
6Reserved
7-8 Byte Transfer Length
9Reserved
The READ LONG command reads data in the data, CRC, and ECC sections from
the specified logical block address.
The length of the transfer data must be a multiple of 600 (258h) bytes for 512-byte
media and a multiple of 2380 (94Ch) bytes for 2048-byte media.
4.3.27 WRITE LONG command
Table 4.72 WRITE LONG command
Bit
Byte
76543210
0 Operation Code (3Fh)
1LUN Reserved
2-5 Logical Block Address
6Reserved
7-8 Byte Transfer Length
9Reserved
The READ LONG command writes data in the data, CRC, and ECC sections from
the specified logical block address.
The length of the transfer data must be a multiple of 600 (258h) bytes for 512-byte
media and a multiple of 2380 (94Ch) bytes for 2048-byte media.