Hitachi 100GB 7200 RPM HTE721010G9SA00 User Manual

Travelstar E7K100 (Serial ATA) Hard Disk Drive Specification

43 

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

At the completion of any command except Execute Device Diagnostic, the contents of this register are valid always 
even if ERR=0 in the Status Register.

Following a power on, a reset, or completion of an Execute Device Diagnostic command, this register contains a 
diagnostic code. 

At the completion of any command except Execute Device Diagnostic, the contents of this register are valid always 
even if ERR=0 in the Status Register. 

Following a power on, a reset, or completion of an Execute Device Diagnostic command, this register contains a 
diagnostic code. See "Diagnostic Codes" on page 20 for the definition. 

This register is command specific. This is used with the Set Features command, S.M.A.R.T. Function Set com-
mand and Format Unit command.

This register contains Bits 16-23. At the end of the command, this register is updated to reflect the current LBA 
Bits 16-23. 

Error Register

7

6

5

4

3

2

1

0

CRC

UNC

0

IDNF

0

ABRT

TKONF

AMNF

Interface CRC Error. CRC=1 indicates a CRC error has occurred on 

the data bus during a Ultra-DMA transfer. 

Uncorrectable Data Error. UNC=1 indicates an uncorrectable data 

error has been encountered. 

ID Not Found. IDN=1 indicates the requested sector’s ID field 

cound not be found . 

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. 

Track 0 Not Found. T0N=1 indicates track 0 was not found during 

a Recalibrate command.

Address Mark Not Found. When AMN=1, it indicates that the data 

address mark has not been found after finding the correct ID 

field for the requested sector.