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10.1 Check Power Mode (98h or E5h)
This command checks the power mode.
Issuing the command while the Card is in Standby mode, is about to enter Standby, or is exiting Standby, the
command will set BSY, set the Sector Count Register to 00h, clear BSY and generate an interrupt.
Issuing the command when the Card is in Idle mode will set BSY, set the Sector Count Register to FFh, clear BSY
and generate an interrupt.
Table 55 defines the Byte sequence of the Check Power Mode command.
Table 55: Check Power Mode
Task File Register
7
6
5
4
3
2
1
0
COMMAND
E5h (or Legacy 98h)
DRIVE/HEAD
nu
nu
nu
D
nu
CYLINDER HI
CYLINDER LOW
SECTOR NUM
SECTOR COUNT
FEATURES
nu
nu
nu
nu
nu
10.2 Data Set Management (06h) TRIM
This 48-bit command is optional for ATA devices. The DATA SETMANAGEMENT command is not part of any feature
set.
The DATA SET MANAGEMENT command provides information for device optimization (e.g., file system information).
See Table 56 for the DATA SET MANAGEMENT command inputs.
Table 56: Data Set Management
register write
previous
current
Task File Register
15:8
7
6
5
4
3
2
1
0
COMMAND
nu
06h
DRIVE/HEAD
nu
nu
L
nu
Transport
Reserved
dependent
LBA High
LBA Mid
LBA Low
Reserved
Reserved
Reserved
SECTOR COUNT
15:8
7:0 Number of 512-byte blocks to be transferred; the value of zero is reserved.
FEATURES
Reserved
TRIM
Currently this command is specified only for the TRIM command.
Currently only one 512-byte block can be transferred with one command (see Identify Device word 169).
Detailed information about the TRIM command is available in the ATA/ATAPI Command Set-2 (ACS-2) at
www.t13.org
10.3 Erase Sector(s) (C0h)
This command is used to pre-erase and condition data sectors prior to a Write Sector without Erase command or a
Write Multiple Without Erase command. There is no data transfer associated with this command but a Write Fault
error status can occur. Table 57 defines the Byte sequence of the Erase Sector command.
Table 57: Erase Sector(s)
Task File Register
7
6
5
4
3
2
1
0
COMMAND
C0h
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 to erase
Cylinder[7:0] or LBA[15:8] of the first sector/LBA to erase
Sector[7:0] or LBA[7:0] of the first sector/LBA to erase
The number of sectors/logical blocks to erase
nu
10.4 Execute Drive Diagnostic (90h)
This command performs the internal diagnostic tests implemented by the Card.
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
C-440_data_sheet_CF-HxBU_Rev100.doc
Page 58 of 102
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