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10.20 Read Multiple (C4h)
Command Block Output Registers
Register
7
Data
-
Feature
-
Sector Count
V
Sector Number
V
Cylinder Low
V
Cylinder High
V
Device/Head
1
Command
1
Error Register
7
6
5
CRC UNC
0
IDN
0
V
0
Table 129 Read Multiple Command (C4h)
The Read Multiple 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.
HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
L
1
D
H
H
H
H
1
0
0
0
1
0
0
4
3
2
1
0
0
ABT T0N AMN
V
0
V
0
0
Command Block Input Registers
Register
7
6
Data
-
-
Error
Sector Count
V
V
Sector Number
V
V
Cylinder Low
V
V
Cylinder High
V
V
Device/Head
-
-
Status
Status Register
7
6
5
4
BSY RDY
DF
DSC DRQ COR IDX ERR
0
V
0
V
169
5
4
3
2
1
0
-
-
-
-
-
-
...See Below...
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
-
-
H
H
H
H
...See Below...
3
2
1
0
-
0
-
V
- Quick Links:
- Data Sheet
- Jumper Settings(Pata Model)
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