Table 93: Read Log Ext Command (2Fh); Read Log Ext (2Fh) - Hitachi HDT725025VLA380 - Deskstar 0A33423 T7K500 250GB SATA 7200RPM 8MB Cache Hard Drive Specifications

12.17 Read Log Ext (2Fh)

Table 94: Read Log Ext Command (2Fh)
Command Block Output Registers
Register
Data Low
Data High
Current
Feature
Previous
Current
Sector
Count
Previous
Current
Sector
Number
Previous
Current
Cylinder
Low
Previous
Cylinder Current
Previous
High
Device/Head
Command
Error Register
7 6 5
CRC UNC 0 IDN
0 V 0
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
Sector Number Previous
Sector Number Current
Cylinder Low Current
Cylinder Low Previous
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
V V V V V V V V
V V V V V V V V
V V V V V V V V
- - - - - - - -
V V V V V V V V
V V V V V V V V
- - - - - - - -
- - - - - - - -
1 - 1 D - - - -
0 0 1 0 1 1 1 1
4 3 2 1 0
0 ABT T0N AMN
V 0 V 0 0
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 spec-
ified offset, regardless of the sector count requested.
The number of sectors to be read from the specified log high orders, bits (15:8).
The log to be returned as described in the figure below.
The first sector of the log to be read low order, bits (7:0).
The first sector of the log to be read high order, bits (15:8).
Deskstar T7K500 Hard Disk Drive Specification
Command Block Input Registers
Register
Data Low
Data High
Error
HOB=0
Sector
Count
HOB=1
HOB=0
Sector
Number
HOB=1
HOB=0
Cylinder
Low
HOB=1
Cylinder HOB=0
HOB=1
High
Device/Head
Status
Status Register
7 6 5 4
BSY RDY DF DSC DRQ
0 V 0 V
167
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
See below ...
3 2 1 0
COR IDX ERR
- 0 - V