Specifications

AMD Geode™ GeodeROM Functional Specification 61
Non-Removable Media
32087C
Table 6-2. info_flag Field
Bit Description
15:7 Reserved: Must be set to zero by the implementor.
6 0 if CHS values are for the media that is currently in the drive (removable media only); values must be
returned for the media if the media is in the drive.
1 if CHS values are fully supported by the drive (when there is no media in the drive).
5 0 if drive is not lockable.
1 if drive is lockable. Bit 5 must be set for removable drives accessed via drive numbers 80h and above, as
well as appropriate drives numbered 0-7Fh.
4 0 if drive does not have change line support.
1 if drive has change line support. Bit 4 must be set for removable drives accessed via drive numbers 80h and
above, as well as appropriate drives numbered 0-7Fh.
3 0 if drive does not support write with verify.
1 if drive supports write with verify. Bit 3 indicates whether Write w/Verify (4301h) is supported on this drive.
2 0 if drive is not removable.
1 if drive is removable.
1 0 if CHS-per-track info is not supplied.
1 if CHS-per-track info is valid. Bit 1 is clear for block devices for which traditional geometry descriptions are
inappropriate.
0 0 if DMA boundary errors may occur.
1 if DMA boundary conditions are handled transparently by the BIOS.