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Hitachi HTS725050A9A364 Datasheet Page 122

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7K500 OEM Specification
Page 122 of 176
14.24
14.2414.24
14.24 Rea
ReaRea
Read Verify Sector(s) (40h/41h)
d Verify Sector(s) (40h/41h) d Verify Sector(s) (40h/41h)
d Verify Sector(s) (40h/41h)
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
AM
N
BSY
RDY
DF
DSC
DRQ
COR
IDX
ERR
0 V 0 V 0 V 0 0
0 V 0 V - 0 0 V
Table 90 Read Verify Sector(s) Command (40h/41h)
The Read Verify Sector(s) verifies one or more sectors on the device. No data is transferred to the
host.
The difference of Read Sector(s) command and Read Verify Sector(s) command is whether the data is
transferred to the host or not.
If an uncorrectable error occurs, the read verify will be terminated at the failing sector.
Output Parameters To The Device
Sector Count
The number of continuous sectors to be verified. If zero is specified, then 256 sectors
will be verified.
LBA Low
The sector number of the first sector to be transferred. (L=0)
In LBA mode, this register contains LBA bits 0 - 7. (L=1)
LBA High/Mid
The cylinder number of the first sector to be transferred. (L=0)
In LBA mode, this register contains LBA bits 8 - 15 (Mid), 16 - 23 (High). (L=1)
H
The head number of the first sector to be transferred. (L=0)
In LBA mode, this register contains LBA bits 24 - 27. (L=1)
R
The retry bit, but this bit is ignored.
Input Parameters From The Device
Sector Count
The nu
mber of requested sectors not verified. This will be zero, unless an unrecoverable
error occurs.
LBA Low
The sector number of the last transferred sector. (L=0)
In LBA mode, this register contains current LBA bits 0 - 7. (L=1)
LBA High/Mid
The cylinder number of the last transferred sector. (L=0)
In LBA mode, this register contains current LBA bits 8 - 15 (Mid), 16 - 23 (High).
(L=1)
H
The head number of the last transferred sector. (L=0)
In LBA mode, this register contains current LBA bits 24 - 27. (L=1)
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