Configure Stream (51H) - Hitachi HTS542525K9SA00 Specifications

12.2 Configure Stream (51h)

Table 72: Configure Stream (51h)
Command Block Output Registers
Register
Data Low
Data High
Current
Feature
Previous
Current
Sector
Count
Previous
Current
Sector
Number
Previous
Current
Cylinder
Low
Previous
Cylinder Current
Previous
High
Device/Head
Command
Error Register
7 6 5
CRC UNC 0 IDN
0 0 0
The Configure Stream command specifies the operating parameters of an individual stream. A Configure Stream
command may be issued for each stream that is to be added or removed from the current operating configuration. If
A/R = 1 and the specified ID is already valid at the device, the new parameters shall replace the old parameters,
unless Command Abort is returned (see abort conditions for Error Register). In this case the old parameters for the
specified Stream ID shall remain in effect.
Output Parameters To The Device
Feature Current bit 7 (A/R)
Feature Current bit 6 (R/W)
Feature Current bit 0..2 (Stream ID)
7 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 V
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 1 1 D - - - -
0 1 0 1 0 0 0 1
4 3 2 1 0
0 ABT T0N AMN
0 0 V 0 0
If set to one, a request to add a new stream.
zero, a request to remove a previous configured stream is
specified.
R/W specifies a read stream if cleared to zero and a
write stream if set to one.
The Stream ID shall be a value between 0 and 7.
Deskstar 7K160 Hard Disk Drive Specification
Command Block Input Registers
Register
Data Low
Data High
Error
HOB=0
Sector
Count
HOB=1
HOB=0
Sector
Number
HOB=1
HOB=0
Cylinder
Low
HOB=1
Cylinder HOB=0
HOB=1
High
Device/Head
Status
Status Register
7 6 5 4
BSY RDY DF DSC DRQ
0 V 0 V
139
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
See below ...
3 2 1 0
COR IDX ERR
- 0 - V
If cleared to