C141-E055-01EN
5 - 33
(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.
Содержание MPC3032AT
Страница 1: ...C141 E055 03EN MPC3032AT MPC3043AT MPC3064AT MPC3084AT MPC3096AT MPC3102AT DISK DRIVES PRODUCT MANUAL ...
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Страница 33: ...C141 E055 02EN 3 2 Figure 3 1 Dimensions ...
Страница 48: ...C141 E055 01EN 4 5 Figure 4 2 MPC30xxAT Block diagram ...
Страница 54: ...C141 E055 01EN 4 11 Figure 4 4 Read write circuit block diagram ...
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