Read Verify Sector(S) Ext (42H); Figure 133. Read Verify Sectors(S) Ext Command (42H) - Hitachi ic35l060avv207-0 - Deskstar 60 GB Hard Drive Specifications

11.27 Read Verify Sector(s) Ext (42h)

Command Block Output
Registers
Register
Data Low
Data High
Fea- Current
ture
Previous
Sector Current
Count
Previous
Sector Current
Number
Previous
Cylin- Current
der
Previous
Low
Cylin- Current
der
Previous
High
Device/Head
Command
Error Register
7 6 5
CRC UNC 0
0 V 0

Figure 133. Read Verify Sectors(s) Ext Command (42h)

The Read Verify Sector(s) Ext verifies one or more sectors on the device. No data is transferred to the
host.
The difference between the Read Sector(s) Ext command and the Read Verify Sector(s) Ext command is
whether the data is transferred to the host or not.
If an uncorrectable error occurs, the Read Verify Sector(s) Ext will be terminated at the failing sector.
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
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 1 D - - - -
0 0 1 0 0 0 1 0
4 3 2 1
IDN 0 ABT T0N AMN
V 0 V 0
Deskstar 180GXP hard disk drive specifications
Command Block Input
Registers
Register
Data Low
Data High
Error
Sector HOB=0
Count
HOB=1
Sector HOB=0
Number
HOB=1
Cylin- HOB=0
der
HOB=1
Low
Cylin- HOB=0
der
HOB=1
High
Device/Head
Status
Status Register
0 7 6 5
BSY RDY DF
V 0 V 0
161
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
...See Below...
- - - - - - - -
- - - - - - - -
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
V V V V V V V V
- - - - - - - -
...See Below...
4 3 2 1
DSC DRQ COR IDX ERR
V – 0 –
0
V