READ BLOCK LIMITS

6.Command Specification

6.14.READ BLOCK LIMITS 05h

Bit

7

6

5

4

 

3

2

1

0

Byte

 

 

 

 

 

 

 

 

 

0

 

 

 

Operation

Code (05h)

 

 

 

1

 

Obsolete

 

 

 

 

Reserved

 

 

2

 

 

 

 

Reserved

 

 

 

3

 

 

 

 

Reserved

 

 

 

4

 

 

 

 

Reserved

 

 

 

5

 

 

 

 

Control

 

 

 

The READ BLOCK LIMITS command tells the drive to return its limits for Block Length. The READ BLOCK LIMITS data shown below will be sent during the DATA IN phase of the command. The command does not reflect the currently selected block size, only the available limits. MODE SENSE returns the current block size. 2 bytes is the minimum and 8 Mbytes - 1 byte is the maximum block size which the unit can support.

Table 6-69: READ BLOCK LIMITS Data

Bit

7

6

5

4

3

2

 

1

0

Byte

 

 

 

 

 

 

 

 

 

0

 

Reserved

 

 

 

Granularity(02h)

 

 

 

1

(MSB)

 

Maximum Block Length Limit (80 00 00h)

 

 

2

 

 

 

 

3

 

 

 

 

 

 

 

 

(LSB)

4

(MSB)

 

Minimum Block Length Limit (00 02h)

 

 

5

 

 

 

 

 

 

 

 

(LSB)

GRANULARITY: This field indicates the block size granularity of the Logical Unit and the recording format. For this Logical Unit, the value is 2, indicating a granularity of 2**GRANULARITY.

The maximum block length limit and minimum block length limit field values are shown in Table 6-69.

SONY AIT-3Ex drive SDX-800V series Ver.1.1

6-71

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Image 129
Sony SDX-800V/R manual Read Block Limits 05h, Obsolete Reserved Control, Read Block Limits Data Bit Byte Reserved
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