11.8.33 Read Native Max Address (F8h)
COMMAND CODE |
| 1 1 1 1 1 0 0 0 | REGISTER | |
| REGISTER SETTING | NORMAL COMPLETION | ||
DR |
| DRIVE No. | no change | |
CY |
|
|
| maximum cylinder number |
HD |
|
|
| maximum head number |
SN |
|
|
| maximum sector number |
LBA |
|
|
| maximum LBA |
This command sets the maximum address in CY, HD, SN register. If LBA ( DRV / HD register bit6 ) is set to 1, the maximum address shall be LBA value.
If the
11.8.34 Read Native Max Address EXT (27h)
COMMAND CODE | 0 0 1 0 0 1 1 1 |
| REGISTER | |||
|
|
| REGISTER SETTING | NORMAL COMPLETION | ||
DR |
|
| drive no. |
| no change | |
LBA | Current |
|
| HOB=0 |
| Max LBA(7:0) |
|
|
| ||||
Low | Previous |
|
| HOB=1 |
| Max LBA(31:24) |
LBA | Current |
|
| HOB=0 |
| Max LBA(15:8) |
Mid | Previous |
|
| HOB=1 |
| Max LBA(39:32) |
LBA | Current |
|
| HOB=0 |
| Max LBA(23:16) |
High | Previous |
|
| HOB=1 |
| Max LBA(47:40) |
SC | Current |
|
| HOB=0 |
| no change |
| Previous |
|
| HOB=1 |
| no change |
FT | Current |
| reserved | HOB=0 |
| no change |
| Previous |
| reserved | HOB=1 |
| no change |
This command sets the maximum address (LBA value).
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