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Table 38: Diagnostic Codes
Code
01h
02h
03h
04h
05h
8Xh
Error Type
No Error Detected
Formatter Device Error
Sector Buffer Error
ECC Circuitry Error
Controlling Microprocessor Error
Slave Error in True IDE Mode
8.4 Flush Cache (E7h)
This command causes the drive to complete writing data from its cache. The drive returns status with RDY=1
and DSC=1 after the data in the write cache buffer is written to the media. If the drive does not support the
Flush Cache command, the drive shall return command aborted.
Table 39: Flush Cache
Task File Register
7
6
5
4
3
2
1
0
COMMAND
E7h
DRIVE/HEAD
nu
nu
nu
D
nu
CYLINDER HI
CYLINDER LOW
SECTOR NUM
SECTOR COUNT
FEATURES
nu
nu
nu
nu
nu
8.5 Format track (50h)
This command writes the desired head and cylinder of the selected drive with a vendor unique data pattern
(typically FFh or 00h). To remain host backward compatible, the Drive expects a sector buffer of data from
the host to follow the command with the same protocol as the Write Sector(s) command although the
information in the buffer is not used by the Drive. If LBA=1 then the number of sectors to format is taken
from the Sec Cnt register (0=256). The use of this command is not recommended.
Table 40: Format track
Task File Register
7
6
5
4
3
2
1
0
COMMAND
50h
DRIVE/HEAD
nu
L
nu
D
H[3:0] or LBA[27:24] of the starting
sector/LBA
CYLINDER HI
CYLINDER LOW
SECTOR NUM
SECTOR COUNT
FEATURES
Cylinder[15:8] or LBA[23:16] of the first sector/LBA
Cylinder[7:0] or LBA[15:8] of the first sector/LBA
nu
Sector Count (LBA only)
nu
8.6 Identify Device (ECh)
The Identify Device command enables the host to receive parameter information from the Drive. This
command has the same protocol as the Read Sector(s) command. Table 41 defines the Identify Device
command Byte sequence. All reserved bits or Words are zero. Table 42 shows the definition of each field in
the Identify Drive Information.
Table 41: Identify Device
Task File Register
7
6
5
4
3
2
1
0
COMMAND
ECh
DRIVE/HEAD
nu
nu
nu
D
nu
CYLINDER HI
CYLINDER LOW
SECTOR NUM
SECTOR COUNT
FEATURES
nu
nu
nu
nu
nu
Swissbit AG
Industriestrasse 4
Swissbit reserves the right to change products or specifications without notice.
Revision: 1.00
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
industrial@swissbit.com
P-120_data_sheet_PA-QxBO_Rev100.doc
Page 40 of 76
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