Datasheet

11.4.9 Error Register

AMNFTK0NFABRT0IDNF0UNCBBK

01234567

Error Register

Figure 56. Error Register

This register contains status from the last command executed by the device or a diagnostic code.

At the completion of any command with the exception of Execute Device Diagnostic, the contents of this

Address Mark Not Found. AMN=1 indicates the data address mark has not been found after

finding the correct ID field for the requested sector.

AMNF (AMN)

Track 0 Not Found. T0N=1 indicates track 0 was not found during a Recalibrate command.TK0NF (T0N)

Aborted Command. ABT=1 indicates the requested command has been aborted due to a

device status error or an invalid parameter in an output register.

ABRT (ABT)

ID Not Found. IDNF=1 indicates the requested sector's ID field could not be found.IDNF (IDN)

Uncorrectable Data Error. UNC=1 indicates an uncorrectable data error has been

encountered.

UNC

Bad Block. BBK=1 indicates a Bad Block is detected.BBK

DescriptionBit Definitions

Figure 57. Error Register bit definitions

11.4.10 Feature Register

This register is command specific. This is used with ACCESS META DATA STORAGE command, SET

FEATURES command and FORMAT UNIT command.

11.4.11 Sector Count Register

This register contains the number of sectors of data requested to be transferred on a read or write

operation between the host and the device. If the value in the register is set to 0, a count of 256 sectors is

specified.

If the register is zero at command completion, the command was successful. If not successfully com-

pleted, the register contains the number of sectors which need to be transferred in order to complete the

request.

The contents of the register are defined otherwise on some commands. These definitions are given in the

command descriptions.

Hard disk drive specification for DSCM-11000/-10512/-10340