Hitachi 7K500 Specification Guide
Deskstar 7K500 Hard Disk Drive Serial ATA Addendum
137
5.42 Set Multiple (C6h)
Table 90: Set Multiple command (C6h)
The Set Multiple command enables the device to perform Read and Write Multiple commands and estab-
lishes the block size for these commands. The block size is the number of sectors to be transferred for
each interrupt.
lishes the block size for these commands. The block size is the number of sectors to be transferred for
each interrupt.
If an invalid block size is specified, an Abort error will be returned to the host. The Read Multiple and
Write Multiple commands will be disabled.
Write Multiple commands will be disabled.
Output parameters to the device
Sector Count
This indicates the block size to be used for the Read Multiple and the Write Multiple com-
mands. Valid block sizes can be selected from 0, 1, 2, 4, 8, or 16. If 0 is specified, then the
Read Multiple and the Write Multiple commands are disabled.
mands. Valid block sizes can be selected from 0, 1, 2, 4, 8, or 16. If 0 is specified, then the
Read Multiple and the Write Multiple commands are disabled.
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
- - - - - - - -
Data
- - - - - - - -
Feature
- - - - - - - -
Error
see below
Sector Count
V V V V V V V V
Sector Count
- - - - - - - -
Sector Number
- - - - - - - -
Sector Number
- - - - - - - -
Cylinder Low
- - - - - - - -
Cylinder Low
- - - - - - - -
Cylinder High
- - - - - - - -
Cylinder High
- - - - - - - -
Device/Head
1 - 1 D - - - -
Device/Head
- - - - - - - -
Command
1 1 0 0 0 1 1 0
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
0
0
V
0
0
0
V
0
-
-
0
-
V