Hitachi hard disk 0J11285 500 GB 2.5 " 8 MB 0J11285 Scheda Tecnica

Z5K500 OEM Specifications 

106 

14.17.2.1 

Error Log version 

The value of this version shall be 01h. 

14.17.2.2 

Error log index 

This indicates the error log data structure representing the most recent error. If there have been no error 
log entries, it is cleared to 0. Valid values for the error log index are 0 to 4. 

14.17.2.3 

Extended Error log data structure 

An error log data structure shall be presented for each of the last four errors reported by the device. 
These error log data structure entries are viewed as a circular buffer. The fifth error shall create an error 
log structure that replaces the first error log data structure. The next error after that shall create an error 
log data structure that replaces the second error log structure, etc.   

Unused error log data structures shall be filled with zeros. 

Data format of each error log structure is shown below. 

Description 

Offset 

1

st

 command data structure 

18

00h 

2

nd

 command data structure 

18

12h 

3

rd

 command data structure 

18

24h 

4

th

 command data structure 

18

36h 

5

th

 command data structure 

18

48h 

Error data structure 

34

5Ah 

 124

 

Table 76 Extended Error log data structure 

 Data format of each command data structure is shown below. 

Description 

Offset 

Device Control register 

1

00h 

Features register (7:0)  (see Note) 

1

01h 

Features register (15:8) 

1

02h 

Sector count register (7:0) 

1

03h 

Sector count register (15:8) 

1

04h 

Sector number register (7:0) 

1

05h 

Sector number register (15:8) 

1

06h 

Cylinder Low register (7:0) 

1

07h 

Cylinder Low register (15:8) 

1

08h 

Cylinder High register (7:0) 

1

09h 

Cylinder High register (15:8) 

1

0Ah 

Device register 

1

0Bh 

Command register 

1

0Ch 

Reserved 1

0Dh 

Timestamp (milliseconds from Power-on) 

4

0Eh 

 18

 

Note: bits (7:0) refer to the most recently written contents of the register. Bits (15:8) refer to the contents 
of the register prior to the most recent write to the register. 

Table 77 Command data structure