Write Sector(S) (30H/31H); Table 137 Write Sector(S) Command (30H/31H) - Hitachi 7K320 - Travelstar Mobile Hard Drive Specifications

14.52

Write Sector(s) (30h/31h)

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

Table 137 Write Sector(s) Command (30h/31h)

The Write Sector(s) command transfers one or more sectors from the host to the device, then
the data is written to the disk media.
The sectors are transferred through the Data Register 16 bits at a time.
If an uncorrectable error occurs, the write will be terminated at the failing sector, when
the auto reassign function is disable.
Output Parameters To The Device
Sector Count
LBA Low
LBA High/Mid
H
R
Input Parameters From The Device
Sector Count
LBA Low
LBA High/Mid
H
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
- L - - H H H H
0 0 1 1 0 0 0 R
3 2 1
0 ABT T0N AM
N
0 V 0
The number of continuous sectors to be transferred. If zero is specified, then 256 sectors
will be transferred.
The sector number of the first sector to be transferred. (L=0)
In LBA mode, this register contains LBA bits 0 - 7. (L=1)
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)
The head number of the first sector to be transferred. (L=0)
In LBA mode, this register contains LBA bits 24 - 27. (L=1)
The retry bit, but this bit is ignored.
The number of requested sectors not transferred. This will be zero, unless
an unrecoverable error occurs.
The sector number of the last transferred sector. (L=0)
In LBA mode, this register contains current LBA bits 0 - 7. (L=1)
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)
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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Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
0 7 6
BSY RDY DF
0 0 V
7K320 (SATA) OEM Specification
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
- - - - H H H H
...See Below...
Status Register
5 4 3 2
DSC DRQ COR IDX ERR
V V - 0
1 0
0 V