Hitachi 100GB 7200 RPM HTE721010G9SA00 User Manual
Product codes
HTE721010G9SA00
Travelstar E7K100 (SATA) Hard Disk Drive Specification
176
12.49 Write Long (32h/33h)
Table 119: Write Long (32h/33h)
The Write Long command transfers the data and the ECC bytes of the designated one sector from the host to the
device, then the data and the ECC bytes are written to the disk media.
device, then the data and the ECC bytes are written to the disk media.
After 512 bytes of data have been transferred, the device will keep setting DRQ = 1 to indicate that the device is
ready to receive the ECC bytes from the host. The number of ECC bytes are either 4 or 52 according to setting of
the Set Feature option. The default number after power on is 4 bytes.
ready to receive the ECC bytes from the host. The number of ECC bytes are either 4 or 52 according to setting of
the Set Feature option. The default number after power on is 4 bytes.
Output parameters to the device
Sector Count
This indicates the number of continuous sectors to be transferred. The Sector Count must
be set to one.
be set to one.
LBA Low
This indicates the sector number of the sector to be transferred. (L = 0)
In LBA mode this register contains the LBA bits 0–7. (L = 1)
LBA High/Mid
This indicates the cylinder number of the 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 indicates the head number of the sector to be transferred. (L = 0)
In LBA mode this register contains the LBA bits 24–27. (L = 1)
R
The retry bit, but this bit is ignored.
Input parameters from the device
Sector Count
This indicates the number of requested sectors not transferred.
LBA Low
This indicates the sector number of the sector to be transferred. (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
0 0 0 0 0 0 0 1
Sector Count
- - - - - - - 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 1 0 0 1 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
0
0
V
0
V
0
0
0
V
V
V
-
0
-
V