4.3 SCSI Commands

4.3.26 READ LONG command

Table 4.71 READ LONG command

Bit

7

6

5

 

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

Operation Code (3Eh)

 

 

 

1

 

LUN

 

 

 

 

 

 

Reserved

 

 

2-5

 

 

 

Logical Block Address

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

Reserved

 

 

 

7-8

 

 

 

Byte Transfer Length

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

7

6

5

 

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

Operation Code (3Fh)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

LUN

 

 

 

 

 

 

Reserved

 

 

2-5

 

 

 

Logical Block Address

 

 

6

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

7-8

 

 

 

Byte Transfer Length

 

 

 

9

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

C156-E224-01EN

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Fujitsu MCJ3230SS manual Read Long command, Write Long command