Interface
5-102
C141-E192-01EN
(44) READ MULTIPLE EXT (29H): Option (customizing)
•
Description
This command is the extended command of the READ MULTIPLE
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 MULTIPLE command.
At command issuance (I/O registers setting contents)
1F7
h
(CM)
0
0
1
1
1
0
0
1
1F6
h
(DH)
1
L
1
DV
xx
1F5
h
(CH) P
1F5
h
(CH) C
1F4
h
(CL) P
1F4
h
(CL) C
1F3
h
(SN) P
1F3
h
(SN) C
1F2
h
(SC) P
1F2
h
(SC) C
1F1
h
(FR) P
1F1
h
(FR) C
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
C: Current
P: Previous
At command completion (I/O registers contents to be read)
1F7
h
(ST)
Status information
1F6
h
(DH)
1
L
1
DV
xx
1F5
h
(CH) 1
1F5
h
(CH) 0
1F4
h
(CL) 1
1F4
h
(CL) 0
1F3
h
(SN) 1
1F3
h
(SN) 0
1F2
h
(SC) 1
1F2
h
(SC) 0
1F1
h
(ER)
LBA (47-40)
LBA (23-16)
LBA (39-32)
LBA (15-8)
LBA (31-24)
LBA (7-0)
xx
xx
Error information
0: HOB=0
1: HOB=1
Содержание MHT2020AT
Страница 1: ...C141 E192 01EN MHT2080AT MHT2060AT MHT2040AT MHT2030AT MHT2020AT DISK DRIVES PRODUCT MANUAL ...
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Страница 62: ...Theory of Device Operation 4 10 C141 E192 01EN Figure 4 4 Read write circuit block diagram ...
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Страница 191: ...5 4 Command Protocol C141 E192 01EN 5 117 g d f f d e Figure 5 7 Normal DMA data transfer ...
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