Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification
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12.2 Configure Stream (51h)
Table 77: Configure Stream Command (51h)
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.
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 - - - - - - - -
Feature Current V V - - - V V V Error ...See Below...
Previous V V V V V V V V
Sector Count Current V V V V V V V V Sector Count HOB=0 - - - - - - - -
Previous V V V V V V V V HOB=1 - - - - - - - -
Sector Number Current - - - - - - - - Sector Number HOB=0 - - - - - - - -
Previous - - - - - - - - HOB=1 - - - - - - - -
Cylinder Low Current - - - - - - - - Cylinder Low HOB=0 - - - - - - - -
Previous - - - - - - - - HOB=1 - - - - - - - -
Cylinder High Current - - - - - - - - Cylinder High HOB=0 V V V V V V V V
Previous - - - - - - - - HOB=1 - - - - - - - -
Device/Head 1 1 1 D - - - - Device/Head - - - - - - - -
Command 0 1 0 1 0 0 0 1 Status ...See Below...
Error Register Status Register
7654321 0 76543 21 0
CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR
00000V0 0 0V0V- 0- V
Output Parameters To The Device
Feature Current bit 7 (A/R) If set to one, a request to add a new stream.
If cleared to zero, a request to remove a previous configured
stream is specified.
Feature Current bit 6 (R/W) R/W specifies a read stream if cleared to zero and a write
stream if set to one.
Feature Current bit 0..2 (Stream ID) The Stream ID shall be a value between 0 and 7.
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