
Interface
(8)
INITIALIZE DEVICE PARAMETERS (X’91’)
The host system can set the number of sectors per track and the maximum head
number (maximum head number is “number of heads minus 1”) per cylinder with
this command. Upon receipt of this command, the device sets the parameters.
Then the device reports the status to the host system.
When the SC field is specified to X’00’, an ABORTED COMMAND error is
posted. Other than X’00’ is specified, this command terminates normally.
The parameters set by this command are retained even after soft reset and
COMRESET issuance or power save operation regardless of the setting of
disabling the reverting to default setting.
The operation is always performed in CHS mode, with the command ignoring any
setting of LBA mode.
•
Error reporting conditions
(1) "00h" is specified in the SC field (ST = 51h, ER = 04h).
(2) A SATA communication error occurred (ST = 51h, ER = 14h).
At command issuance (Shadow Block Registers setting contents)
CM
1 0 0 1 0 0 0 1
DH
x x x x
Max.
head
No.
CH
CL
SN
SC
FR
xx
xx
xx
Number of sectors/track
xx
At command completion (Shadow Block Registers contents to be read)
ST Status
information
DH
x x x x
Max.
head
No.
CH
CL
SN
SC
ER
xx
xx
xx
Number of sectors/track
Error information
5-44
C141-E249
Содержание MHW2040BS
Страница 1: ...C141 E249 01EN MHW2120BS MHW2100BS MHW2080BS MHW2060BS MHW2040BS DISK DRIVES PRODUCT MANUAL ...
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Страница 18: ...Contents 6 5 1 Cache operation 6 20 Glossary GL 1 Acronyms and Abbreviations AB 1 Index IN 1 xiv C141 E249 ...
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Страница 86: ...Interface Figure 5 2 Example of the circuit for driving Ready LED 5 12 C141 E249 ...
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