5.3 Host Commands
C141-E293
5-103
(26) IDENTIFY DEVICE (X 'EC')
The host system issues the IDENTIFY DEVICE command to read parameter
information from the device. When it receives the command, the device prepares
the parameter information to be sent to the host. Next, the device sends the PIO
Setup FIS to the host, then sends the parameter information including a 512-byte
data. Table 5.33 shows the values of the parameter words and the meaning in the
buffer.
•
Error reporting conditions
(1) A SATA communication error occurred (ST = 51h, ER = 0Ch).
At command issuance (Shadow Block Registers setting contents)
CM
1 1 1 0 1 1 0 0
DH
x x x x
xx
CH
CL
SN
SC
FR
xx
xx
xx
xx
xx
At command completion (Shadow Block Registers contents to be read)
ST Status
information
DH
x x x x
xx
CH
CL
SN
SC
ER
xx
xx
xx
xx
Error information
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Страница 253: ...5 4 Command Protocol C141 E293 5 179 Device Host RegHD PIO Setup DATA Figure 5 14 PIO data in command protocol ...
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