Hitachi P7K500 Техническое Руководство
HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
170
10.21 Read Multiple Ext (29h)
Command Block Output Registers
Command Block Input Registers
Register
7
6
5
4
3
2
1
0
Register
7
6
5
4
3
2
1
0
Data Low
-
-
-
-
-
-
-
-
Data Low
-
-
-
-
-
-
-
-
Data High
-
-
-
-
-
-
-
-
Data High
-
-
-
-
-
-
-
-
Current
-
-
-
-
-
-
-
-
Error
…See Below…
Feature
Previous
-
-
-
-
-
-
-
-
Current
V
V
V
V
V
V
V
V
HOB=0
-
-
-
-
-
-
-
-
Sector Count
Previous
V
V
V
V
V
V
V
V
Sector Count
HOB=1
-
-
-
-
-
-
-
-
Current
V
V
V
V
V
V
V
V
HOB=0
V
V
V
V
V
V
V
V
Sector
Number
Number
Previous
V
V
V
V
V
V
V
V
Sector
Number
Number
HOB=1
V
V
V
V
V
V
V
V
Current
V
V
V
V
V
V
V
V
HOB=0
V
V
V
V
V
V
V
V
Cylinder Low
Previous
V
V
V
V
V
V
V
V
Cylinder Low
HOB=1
V
V
V
V
V
V
V
V
Current
V
V
V
V
V
V
V
V
HOB=0
V
V
V
V
V
V
V
V
Cylinder High
Previous
V
V
V
V
V
V
V
V
Cylinder High
HOB=1
V
V
V
V
V
V
V
V
Device/Head
-
1
-
D
-
-
-
-
Device/Head
-
-
-
-
-
-
-
-
Command
0
0
1
0
1
0
0
1
Status
…See Below…
Error Register
Status Register
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CRC
UNC
0
IDN
0
ABT
T0N
AMN
BSY
RDY
DF
DSC
DRQ
COR
IDX
ERR
0
0
0
V
0
V
0
0
0
V
0
V
-
0
-
V
Table 130 Read Multiple Ext Command (29h)
The Read Multiple Ext command reads one or more sectors of data from disk media, and then transfers the data
from the device to the host.
The sectors are transferred through the Data Register 16 bits at a time. Command execution is identical to the
Read Sector(s) command except that an interrupt is generated for each block (as defined by the Set Multiple
command) instead of for each sector.
Read Sector(s) command except that an interrupt is generated for each block (as defined by the Set Multiple
command) instead of for each sector.