Cylinder High/Low
In LBA mode, this register contains LBA bits 8 - 15 (Low),
16 - 23 (High) which is to be set. ( L = 1 )
In CHS mode, this register contains cylinder number which is to be set.(L=0)
H
In LBA mode, this register contains LBA bits 24 - 27 which is to be set.(L=1)
In CHS mode, this register is ignored. ( L = 0 )
Input Parameters From The Device
Sector Number
In LBA mode, this register contains max LBA bits 0 - 7 which is set.(L=1)
In CHS mode, this register contains max sector number. ( L = 0 )
Cylinder High/Low
In LBA mode, this register contains max LBA bits 8 - 15 (Low),
16 - 23 (High) which is set. ( L = 1 )
In CHS mode, this register contains max cylinder number which is set. ( L = 0 )
H
In LBA mode, this register contains max LBA bits 24 - 27 which is set. ( L = 1 )
In CHS mode, this register contains max head number.(L=0)
144
O E M Specifications for DTTA-3xxxxx