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11.23.1 General Purpose Log Directory
Table 145 defines the 512 bytes that make up the General Purpose Log Directory.
Description
General Purpose Logging Version
Number of sectors in the log at log address 01h (7:0)
Number of sectors in the log at log address 01h (15:8)
Number of sectors in the log at log address 02h (7:0)
Number of sectors in the log at log address 02h (15:8)
Number of sectors in the log at log address 20h (7:0)
Number of sectors in the log at log address 20h (15:8)
Number of sectors in the log at log address 21h (7:0)
Number of sectors in the log at log address 21h (15:8)
Number of sectors in the log at log address 22h (7:0)
Number of sectors in the log at log address 22h (15:8)
Number of sectors in the log at log address 80h (7:0)
Number of sectors in the log at log address 80h (15:8)
Number of sectors in the log at log address FFh (7:0)
Number of sectors in the log at log address FFh (15:8)
Table 145 General Purpose Log Directory
The value of the General Purpose Logging Version word shall be 0001h. A value of 0000h indicates that there is no
General Purpose Log Directory.
The logs at log addresses 80-9Fh shall each be defined as 16 sectors long.
Table 145 defines the 512 bytes that make up the General Purpose Log Directory for Serial ATA.
Byte
Log
000h..01Fh
020h
10h
021h
10h
022h
11
023h
11h
024h
12h
025h
12h
026h
027h
028h
029h
02Ah
15h
02Bh
15h
02Ch..2Fh
030h..1FFh
Table 146 General Purpose Log Directory for Serial ATA
...
...
...
Value
As defined in the ACS-2 standard
1 if Native Command Queuing is supported,
0 if Native Command Queuing is not supported
0
1 if Phy Event Counters are supported
0 if Phy Event Counters are not supported
0
1 if NCQ NON-DATA is supported
0 if NCQ NON-DATA is not supported
0
Reserved
Reserved
Reserved
Reserved
1 if Rebuild Assist log is supported
0 if Rebuild Assist log is not supported
0
Reserved
As defined in the ACS-2 standard
Western Digital Hard Disk Drive OEM Specification
Bytes
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
512
176
Offset
00h
02h
03h
04h
05h
40h
41h
42h
43h
44h
45h
100h
101h
1FEh
1FFh
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