REPORT DENSITY SUPPORT

6.Command Specification

6.19.REPORT DENSITY SUPPORT 44h

Bit

7

6

5

4

 

3

2

1

0

Byte

 

 

 

 

 

 

 

 

 

0

 

 

 

Operation

Code (44h)

 

 

 

1

 

 

 

Reserved

 

 

 

MEDIA

2

 

 

 

Reserved

 

 

 

 

3

 

 

 

Reserved

 

 

 

 

4

 

 

 

Reserved

 

 

 

 

5

 

 

 

Reserved

 

 

 

 

6

 

 

 

Reserved

 

 

 

 

7

(MSB)

 

 

Allocation Length

 

 

 

8

 

 

 

 

 

 

 

 

(LSB)

9

 

 

 

Control

 

 

 

 

REPORT DENSITY SUPPORT provides information regarding the supported densities for the logical unit be sent to application client.

MEDIA : The MEDIA bit of ZERO indicates that the drive shall return density support data block for densities supported by the logical unit for any supported media. The data returned by the drive shall be static if the MEDIA bit is ZERO. The MEDIA bit of ONE indicates that the drive shall return density support data block for densities supported by the mounted medium. If the MEDIA bit is ONE and the logical unit is not in the ready state, CHECK CONDITION status shall be returned. The sense key shall be sent to NOT READY.

The Allocation Length field specifies the maximum number of bytes that the drive may return.

The REPORT DENSITY SUPPORT command returns the REPORT DENSITY SUPPORT header followed by one DENSITY SUPPORT data block. The Density support data blocks shall be in numerical ascending order of the primary density code value for each block.

Table 6-83: REPORT DENSITY SUPPORT header

Bit

7

6

5

 

4

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

0

(MSB)

 

 

Available Density Support Length

 

 

 

1

 

 

 

 

 

 

 

 

 

(LSB)

2

 

 

 

 

Reserved (00h)

 

 

 

3

 

 

 

 

Reserved (00h)

 

 

 

Available Density Support Length: This field specified the number of bytes in the following data that is available to be transferred. The Available density support length does not include itself.

Table 6-84: REPORT DENSITY SUPPORT data block descriptor

Bit

7

6

5

 

4

 

3

 

2

 

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

PRIMARY DENSITY CODE ( 30 h )

 

 

 

 

1

 

 

SECONDARY DENSITY CODE ( 30 h)

 

 

2

WRTOK(0)

DUP(0)

DEFLT(1)

 

 

 

Reserved (00h)

 

 

3

 

 

 

 

Reserved (00h)

 

 

 

 

4

 

 

 

 

Reserved (00h)

 

 

 

 

5

(MSB)

 

 

BITS PER MM ( 00 11 D7 h )

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

(LSB)

8

(MSB)

 

 

 

MEDIA WIDTH (00 50 h)

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

(LSB)

10

(MSB)

 

 

 

TRACKS ( 00 01 h )

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

(LSB)

12

(MSB)

 

 

 

 

CAPACITY

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

(LSB)

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

6-81

Page 139
Image 139
Sony SDX-800V/R manual Report Density Support 44h, Media, MSB Capacity LSB