Fujitsu MCJ3230AP manual 11READ Format Capacities command, Read Capacity data

Models: MCJ3230AP

1 199
Download 199 pages 21.43 Kb
Page 133
Image 133

4.6 Packet Commands

Table 4.83 READ CAPACITY data

Bit

7

6

5

 

4

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0-3

 

 

 

Last Logical Block Address

 

 

 

 

 

 

 

 

 

 

 

4-7

 

 

 

Block Length in Bytes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Last Block Address specifies LBA of the last accessible block.

Block Length in Bytes indicates the number of bytes per block.

4.6.11READ FORMAT CAPACITIES command

Table 4.84 READ FORMAT CAPACITIES command

Bit

7

6

5

 

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

Operation Code (23h)

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

2-6

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

7-8

 

 

 

 

Allocation Length

 

 

 

 

 

 

 

 

 

 

 

 

 

9-11

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The READ FORMAT CAPACITIES command transfers data on the capacity of media currently loaded to the host. If no media is loaded, this command returns the maximum capacity value of supported media to the host.

Table 4.85 READ FORMAT CAPACITIES data format

Bit

7

6

 

5

 

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Capacity List Header

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Current / Maximum Capacity Descriptor

 

 

 

 

 

 

 

 

 

 

 

 

Table 4.86 Capacity list header

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit

7

6

 

5

 

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0-2

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

Capacity List Length (8h)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C156-E205-01EN

4-61

Page 133
Image 133
Fujitsu MCJ3230AP manual 11READ Format Capacities command, Read Capacity data, Read Format Capacities command