
Host Interface
Table 4.72 Mode parameter list
Bit | 7 | 6 | 5 |
| 4 | 3 |
| 2 | 1 | 0 |
Byte |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Mode Parameter Header |
|
|
| ||||
|
|
|
|
|
|
|
|
| ||
|
|
|
| Block Descriptor |
|
|
| |||
|
|
|
|
|
|
|
|
| ||
|
|
|
| Mode Page (s) |
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
The mode parameter list consists of a mode parameter header and Block Descriptor and Mode Page. The mode parameter header is shown in Table 4.73.
Table 4.73 Mode parameter header
Bit | 7 | 6 | 5 |
| 4 | 3 |
| 2 | 1 | 0 |
Byte |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0 |
|
|
|
| Mode data Length |
|
|
| ||
|
|
|
|
|
|
|
|
| ||
1 |
|
|
|
| Medium Type Code |
|
|
| ||
|
|
|
|
|
|
|
|
|
| |
2 | WP |
|
|
|
| Reserved |
|
|
| |
|
|
|
|
|
|
|
| |||
3 |
|
|
| Block Descriptor Length |
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
Medium Type Code returns the following values:
!
!
!
03h for non overwrite
07h for overwrite
03h for other media and Not Ready state
The WP (Write Protect) bit indicates the state of the write protect key on the cartridge. A value of 1 indicates write protected
Mode Data Length indicates the length of mode data to be transferred
Block Descriptor Length indicates the length of block descriptor to be transferred in bytes.
The Block descriptor is shown in Table 4.74.