|'''#FD0D''' || Cylinder High || Cylinder High
|-
|'''#FD0E''' || SDH Head Register || SDH Head Register
|-
|'''#FD0F''' || Status Register || Command Register
* [[SYMBiFACE II:IDE routines|Low level IDE routines]]
* [[Programming:SYMBiFACE_II|SYMBiFACE II documentations]]
* [[http://www.t13.org/documents/uploadeddocuments/docs2006/d1699r3f-ata8-acs.pdf specification]]
[[Category:Programming]]