Hitachi 100GB 7200 RPM HTE721010G9SA00 Benutzerhandbuch
Produktcode
HTE721010G9SA00
Travelstar E7K100 (SATA) Hard Disk Drive Specification
123
12.24 Read Verify Sectors (40h/41h)
Table 82: Read Verify Sectors (40h/41h)
The Read Verify Sector(s) command verifies one or more sectors on the device. No data is transferred to the host.
The difference between the Read Sector(s) command and Read Verify Sector(s) command is that data is transferred
to the host during a Read Sectors command and data is not transferred to the host during a Read Verify Sectors
command.
to the host during a Read Sectors command and data is not transferred to the host during a Read Verify Sectors
command.
If an uncorrectable error occurs, the read verify will be terminated at the failing sector.
Output parameters to the device
Sector Count
This is the number of continuous sectors to be verified. If zero is specified, 256 sectors
will be verified.
will be verified.
LAB Low
This is the sector number of the first sector to be transferred. (L = 0)
In LBA mode this register contains the LBA bits 0–7. (L = 1)
LBA High/Low
This is the cylinder number of the first sector to be transferred. (L = 0)
In LBA mode this register contains the LBA bits 8–15 (Mid) and bits 16–23 (High).
(L = 1)
(L = 1)
H
This is the head number of the first sector to be transferred. (L = 0)
In LBA mode this register contains the LBA bits 24–27. (L = 1)
R
This is the retry bit; this bit is ignored.
Input parameters from the device
Sector Count
This is the number of requested sectors not transferred. This number will be zero, unless
an unrecoverable error occurs.
an unrecoverable error occurs.
LBA Low
This is the sector number of the last transferred sector. (L = 0)
In LBA mode this register contains the current LBA bits 0–7. (L = 1)
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
- - - - - - - -
Data
- - - - - - - -
Feature
- - - - - - - -
Error
see below
Sector Count
V V V V V V V V
Sector Count
V V V V V V V V
LBA Low
V V V V V V V V
LBA Low
V V V V V V V V
LBA Mid
V V V V V V V V
LBA Mid
V V V V V V V V
LBA High
V V V V V V V V
LBA High
V V V V V V V V
Device
- L - - H H H H
Device
- - - - H H H H
Command
0 0 1 0 0 0 0 R
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
0
V
0
V
0
V
0
0
0
V
0
V
-
0
-
V