Fujitsu MHT2020AT Product Manual page 174

Interface
(42) READ DMA EXT (25H): Option (customizing)
Description
This command is the extended command of the READ DMA command. The
LBA specification is increased from 28 bits to 48 bits, and the maximum
number of sectors that can be transferred by a single command is changed
from 100h to 10000h. Other command controls are the same as those of the
READ DMA command.
At command issuance (I/O registers setting contents)
1F7 (CM)
h
1F6 (DH)
h
1F5 (CH) P
h
1F5 (CH) C
h
1F4 (CL) P
h
1F4 (CL) C
h
1F3 (SN) P
h
1F3 (SN) C
h
1F2 (SC) P
h
1F2 (SC) C
h
1F1 (FR) P
h
1F1 (FR) C
h
C: Current
P: Previous
At command completion (I/O registers contents to be read)
1F7 (ST)
h
1F6 (DH)
h
1F5 (CH) 1
h
1F5 (CH) 0
h
1F4 (CL) 1
h
1F4 (CL) 0
h
1F3 (SN) 1
h
1F3 (SN) 0
h
1F2 (SC) 1
h
1F2 (SC) 0
h
1F1 (ER)
h
0: HOB=0
1: HOB=1
5-100
0 0 1 0
1 L 1 DV
LBA (47-40)
LBA (23-16)
LBA (39-32)
LBA (15-8)
LBA (31-24)
LBA (7-0)
Sector count (15-8)
Sector count (7-0)
xx
xx
Status information
1 L 1 DV
LBA (47-40)
LBA (23-16)
LBA (39-32)
LBA (15-8)
LBA (31-24)
LBA (7-0)
xx
xx
Error information
0 1 0 1
xx
xx
C141-E192-01EN