Hitachi CinemaStar P7K500 Specifications page 191

RC (bit6)
NS (bit5)
HSE (bit4)
Stream ID (bit 0..2)
Feature Previous
CCTL (7:0)
Sector Count Current
Sector Count Previous
Sector Number Current
Sector Number Previous
Cylinder Low Current
Cylinder Low Previous
Cylinder High Current
Cylinder High Previous
Input Parameters From The Device
Sector Number (HOB=0)
Sector Number (HOB=1)
Cylinder Low (HOB=0)
Cylinder Low (HOB=1)
Cylinder High (HOB=0)
Cylinder High (HOB=1)
CCTO (Error, bit 0)
SE (Status, bit 5)
HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
RC specifies Read Continuous mode enabled. If the Read Continuous bit is set
to one, the device shall not stop execution of the command due to errors.
If the RC bit is set to one and errors occur in reading or transfer of the data, the
device shall continue to transfer the amount of data requested and then provide
ending status with BSY bit cleared to zero, the SE bit set to one, the ERR bit
cleared to zero, and the type of error, UNC, IDNF or ABRT reported in the error
log.
If the RC bit is set to one and the CCTL expires, the device shall stop execution of
the command and provide ending status with the BSY bit cleared to zero, the SE
bit set to one, the ERR bit cleared to zero, and report the fact that the CCTL
expired by setting the CCTO bit in the error log to one.
In all cases, the device shall attempt to transfer the amount of data requested
within the CCTL even if some data transferred is in error.
NS (Not Sequential) may be set to one if the next read stream command with the
same Stream ID may not be sequential in LBA space.
HSE (Handle Stream Error) specifies that this command starts at the LBA of the
last reported error for this stream, so the device may attempt to continue its
corresponding error recovery sequence where it left off earlier.
Stream ID specifies the stream to be read. The device shall operate according to
the Stream ID set by the Read Stream command.
The time allowed for the current command's completion is calculated as follows:
Command Completion Time Limit = (content of the Feature register
Previous) * (Identify Device words (99:98)) microseconds
If the value is zero, the device shall use the Default CCTL supplied with a previous
Configure Stream command for this Stream ID. If the Default CCTL is zero, or no
previous Configure Stream command was defined for this Stream ID, the device
will ignore the CCTL. The time is measured from the write of the command
register to command completion. The minimum CCTL is 50ms.CCTL is set to
50ms when the specified value is shorter than 50ms.
The number of continuous sectors to be transferred low order, bits (7:0)
The number of continuous sectors to be transferred high order, bits (15:8). If zero
is specified in the Sector Count register, then 65,536 sectors will be transferred.
LBA (7:0).
LBA (31:24).
LBA (15:8).
LBA (39:32).
LBA (23:16).
LBA (47:40).
LBA (7:0) of the address of the first unrecoverable error.
LBA (31:24) of the address of the first unrecoverable error.
LBA (15:8) of the address of the first unrecoverable error.
LBA (39:32) of the address of the first unrecoverable error.
LBA (23:16) of the address of the first unrecoverable error.
LBA (47:40) of the address of the first unrecoverable error.
CCTO bit shall be set to one if a Command Completion Time Limit Out error has
occurred.
SE (Stream Error) shall be set to one if an error has occurred during the execution
of the command and the RC bit is set to one. In this case the LBA returned in the
Sector Number registers shall be the address of the first sector in error, and the
Sector Count registers shall contain the number of consecutive sectors that may
contain errors. If the RC bit is set to one when the command is issued and a
UNC, IDNF, ABRT, or CCTO error occurs, the SE bit shall be set to one, the ERR
bit shall be cleared to zero, and the bits that would normally be set in the Error
register shall be set in the error log.
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