Interface
5-38
C141-E057-01EN
(13) IDENTIFY DEVICE DMA (X’EE’)
When this command is not used to transfer data to the host in DMA mode, this
command functions in the same way as the Identify Device command.
At command issuance (I/O registers setting contents)
1F7
H
(CM)
1
1
1
0
1
1
1
0
1F6
H
(DH)
×
×
×
DV
xx
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
1F2
H
(SC)
1F1
H
(FR)
xx
xx
xx
xx
xx
At command completion (I/O registers contents to be read)
1F7
H
(ST)
Status information
1F6
H
(DH)
×
×
×
DV
xx
1F5
H
(CH)
1F4
H
(CL)
1F3
H
(SN)
1F2
H
(SC)
1F1
H
(ER)
xx
xx
xx
xx
Error information
(14) SET FEATURES (X’EF’)
The host system issues the SET FEATURES command to set parameters in the
Features register for the purpose of changing the device features to be executed.
For the transfer mode (Feature register = 03), detail setting can be done using the
Sector Count register.
Upon receipt of this command, the device sets the BSY bit of the Status register
and saves the parameters in the Features register. Then, the device clears the BSY
bit, and generates an interrupt.
If the value in the Features register is not supported or it is invalid, the device
posts an ABORTED COMMAND error.
Table 5.5 lists the available values and operational modes that may be set in the
Features register.
Summary of Contents for MHE2043AT
Page 1: ...C141 E057 02EN MHE2064AT MHE2043AT MHF2043AT MHF2021AT DISK DRIVE PRODUCT MANUAL ...
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Page 42: ...3 1 Dimensions C141 E057 01EN 3 3 Figure 3 1 Dimensions MHF series 2 2 ...
Page 52: ...3 4 Jumper Settings C141 E057 01EN 3 13 Figure 3 14 Example 2 of Cable Select ...
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Page 58: ...4 3 Circuit Configuration C141 E057 01EN 4 5 Figure 4 2 Circuit Configuration 16 bit ...
Page 64: ...4 6 Read write Circuit C141 E057 01EN 4 11 Figure 4 4 Read write circuit block diagram ...
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Page 171: ...Interface 5 96 C141 E057 01EN Figure 5 10 Data transfer timing ...
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