13 read defect data command – FUJITSU MCM3064AP User Manual
Page 138
Host Interface
4-68
C156-E227-01EN
Table 4.90 Current/Maximum capacity descriptor
Bit
Byte
7
6
5
4
3
2
1
0
0-3
Number of Blocks
4
Reserved
Descriptor Code
5-7
Block Length
Number of Blocks indicates the number of addressable blocks.
Descriptor Code indicates the type of descriptor to be reported to the host.
Block Length indicates the length of the block in bytes.
Table 4.91 Descriptor code definition
Descriptor Code
Descriptor Type
00b
Unformatted media (Other fields are ineffective.)
01b
Unformatted media (Maximum format capacity)
10b
Formatted media (Current media capacity)
11b
No media loaded (Maximum format capacity)
4.6.13 READ DEFECT DATA command
Table 4.92 READ DEFECT DATA command
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (37h)
1
Logical Unit Number
Reserved
2
Reserved
Plist
Glist
Defect List Format
3-6
Reserved
7-8
Allocation Length
9-11
Reserved
The READ DEFECT DATA command transfers media defect data to the host.