Read Log Ext (2Fh); Table 105. Read Log Ext Command (2Fh) - Hitachi 7K400 - Deskstar Hard Drive Specifications

12.20 Read Log Ext (2Fh)

Table 106: Read Log Ext Command (2Fh)
Command Block Output Registers
Register
Data Low
Data High
Feature Current
Previous
Sector Current
Count
Previous
Sector Current
Number
Previous
Cylinder Current
Low
Previous
Cylinder Current
High
Previous
Device/Head
Command
7 6 5
CRC UNC 0
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 0 - - - -
0 0 1 0 1 1 1 1
Error Register
4 3 2 1
IDN 0 ABT T0N AMN
V 0 V 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 7K400 Hard Disk Drive Specification
Command Block Input Registers
Register
Data Low
Data High
Error
Sector
Count
Sector
Number
Cylinder
Low
Cylinder
High
Device/Head
Status
0 7 6
BSY RDY DF DSC DRQ
0 0 V
150
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
see below
HOB=0 - - - - - - - -
HOB=1 - - - - - - - -
HOB=0 - - - - - - - -
HOB=1 - - - - - - - -
HOB=0 - - - - - - - -
HOB=1 - - - - - - - -
HOB=0 - - - - - - - -
HOB=1 - - - - - - - -
- - - - - - - -
See below ...
Status Register
5 4 3 2
COR IDX
0 V - 0
1 0
ERR
- V