Travelstar 5K160 (PATA) Hard Disk Drive Specification
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14.15 Read
Log
Ext(2Fh)
Command Block Output Registers
Command Block Input Registers
Register
7 6 5 4
3
2
1
0 Register
7
6 5 4 3 2 1
0
Data
Low
- - - -
-
-
-
- Data
Low
-
- - - - - -
-
Data
High
- - - -
-
-
-
- Data
High
-
- - - - - -
-
Current
- - - -
-
-
-
-
Error
...See
Below...
Feature
Previous - - - -
-
-
-
-
Current V V V V V V V V
HOB=0
-
- - - - - -
-
Sector Count
Previous V V V V V V V V
Sector Count
HOB=1
-
- - - - - -
-
Current V V V V V V V V
HOB=0
-
- - - - - -
-
LBA Low
Previous - - - -
-
-
-
-
LBA Low
HOB=1
-
- - - - - -
-
Current V V V V V V V V
HOB=0
-
- - - - - -
-
LBA Mid
Previous V V V V V V V V
LBA Mid
HOB=1
-
- - - - - -
-
Current
- - - -
-
-
-
-
HOB=0
-
- - - - - -
-
LBA High
Previous - - - -
-
-
-
-
LBA High
HOB=1
-
- - - - - -
-
Device
- - - D
-
-
-
- Device
V
- - - - - -
-
Command
0 0 1 0
1
1
1
1 Status
...See
Below...
Error Register
Status Register
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
CRC UNC 0 IDN 0 ABT T0N AMN BSY
RDY DF
DSC
DRQ COR IDX ERR
V V 0 V 0 V 0 0 0 V 0 V - 0 - V
Figure 67 Read Log Ext command (2Fh)
This command returns the specified log to the host. The device shall interrupt for each DRQ block transferred.
Output Parameters To The Device
Sector Count Current
The number of sectors to be read from the specified log low order, bits (7:0). The log
transferred by the drive shall start at the sector in the specified log at the specified
offset, regardless of the sector count requested.
Sector Count Previous
The number of sectors to be read from the specified log high orders, bits (15:8).
LBA Low Current
The log to be returned as described in Figure
LBA Mid Current
The first sector of the log to be read low order, bits (7:0).
LBA Mid Previous
The first sector of the log to be read high order, bits (15:8).
Log
address
Content
Feature set
Type
00h
Log directory
N/A
Read Only
03h
Extended Comprehensive SMART
error log
SMART error
logging
Read Only
07h
Extended SMART self-test log
SMART self-test
Read Only
80h-9Fh
Host vendor specific
SMART
Read/Wri
te
Figure 68 Log address definition
The Extended SMART self-test log sector shall support 48-bit and 28-bit addressing. All 28-bit entries contained in
the SMART self-test log sector shall also be included in the Comprehensive SMART self-test log sector with the
48-bit entries.
If the feature set associated with the log specified in the Sector Number register is not supported or enabled, or if the
values in the Sector Count, Sector Number or Cylinder Low registers are invalid, the device shall return command
aborted.