Read Verify Sector(S) Ext (42H); Table 92 Read Verify Sector(S) Ext Command (42H) - Hitachi 7K320 - Travelstar Mobile Hard Drive Specifications

14.25

Read Verify Sector(s) Ext (42h)

Command Block Output Registers
Register
Data Low
Data High
Feature Current
Previous
Sector Count Current
Previous
LBA Low Current
Previous
LBA Mid Current
Previous
LBA High Current
Previous
Device
Command
Error Register
7 6 5 4
CRC UNC 0 IDN
0 V 0 V

Table 92 Read Verify Sector(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.
Output Parameters To The Device
Sector Count Current
Sector Count Previous
LBA Low Current
LBA Low Previous
LBA Mid Current
LBA Mid Previous
LBA High Current
LBA High Previous
Input Parameters From The Device
LBA Low (HOB=0)
LBA Low (HOB=1)
LBA Mid (HOB=0)
LBA Mid (HOB=1)
LBA High (HOB=0)
LBA High (HOB=1)
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 - - - - -
0 0 1 0 0 0 1 0
3 2 1 0
0 ABT T0N AMN
0 V 0 0
The number of sectors to be transferred low order, bits (7:0).
The number of sectors to be transferred high order, bits (15:8). If 0000h in the Sector
Count register is specified, then 65,536 sectors will be verified.
LBA (7:0)
LBA (31:24)
LBA (15:8)
LBA (39:32)
LBA (23:16)
LBA (47:40)
LBA (7:0) of the address of the first unrecoverable error.
LBA (31:24)of the address of the first unrecoverable error.
LBA (15:8)of the address of the first unrecoverable error.
LBA (39:32)of the address of the first unrecoverable error.
LBA (23:16)of the address of the first unrecoverable error.
LBA (47:40)of the address of the first unrecoverable error.
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7K320 (SATA) OEM Specification
Command Block Input Registers
Register
- Data Low
- Data High
- Error
-
Sector Count HOB=0 -
HOB=1 -
LBA Low HOB=0 V V V V V V V V
HOB=1 V V V V V V V V
LBA Mid HOB=0 V V V V V V V V
HOB=1 V V V V V V V V
LBA High HOB=0 V V V V V V V V
HOB=1 V V V V V V V V
- Device
Status
Status Register
7 6 5
BSY RDY DF DSC DRQ COR IDX
0 V 0
7 6 5 4 3 2 1 0
- - - - -
- - - - -
...See Below...
- - - -
- - - -
- - - - -
...See Below...
4 3 2 1
V - 0 0
- - -
- - -
- - -
- - -
- - -
0
ERR
V