Hitachi HDS721025CLA382 Manuel D’Utilisation
Hitachi hard disk drive specifications
254
12
Timings
The timing of BSY and DRQ in Status Register are shown in Table 180Table 181.
The other timings are described in HDS7210xxCLA3yz / HUA7220xxCLA33z / HCS5C10xxCLA382 /
HCS7210xxCLA3y2
HCS7210xxCLA3y2
/
HDS5C10xxCLA382 Final Functional Specification.
FUNCTION
INTERVAL
START
STOP
TIMEOUT
Power On
and
COMRESET
and
COMRESET
Device Busy after Power On
Power On
The device sets BSY(=0) and
RDY(=1) to the Status
Register and sends a Register
FIS to the host.
RDY(=1) to the Status
Register and sends a Register
FIS to the host.
31 sec
Software
Reset
Reset
Device Busy after Software
Reset
Reset
The host asserts SRST(=1)
in the Device Control
Register and sends a
Register FIS to the Device.
in the Device Control
Register and sends a
Register FIS to the Device.
The Host sets BSY(=1) to the
Status Register.
Status Register.
400 ns
Device Ready after
Software Reset
Software Reset
The host asserts SRST(=1)
to the Device Control
Register and sends a
Register FIS to the Device.
Then the host negates
SRST(=0) to the Device
Control Register and sends a
Register FIS to the Device.
to the Device Control
Register and sends a
Register FIS to the Device.
Then the host negates
SRST(=0) to the Device
Control Register and sends a
Register FIS to the Device.
The device sets BSY(=0) and
RDY(=1) to the Status
Register and requests to send
a Register FIS to the host.
RDY(=1) to the Status
Register and requests to send
a Register FIS to the host.
31 sec
COMRESET
Device
Ready
after
COMRESET
COMRESET Signal asserted
The device sets BSY(=0) and
RDY(=1)
RDY(=1)
to
the
Status
Register and sends a Register
FIS to the Host.
FIS to the Host.
31 sec
Non-Data
command
command
Device Busy after a Register
FIS to issue a command
FIS to issue a command
The host sets proper values
in the registers and sends a
Register FIS
in the registers and sends a
Register FIS
The host sets BSY(=1) to the
Status register
Status register
400 ns
A Register FIS to report
Command Complete
Command Complete
The host sets BSY(=1) to the
Status Register
Status Register
The device sets the status of
the command to the Status
Register and sends a Register
FIS to the host
the command to the Status
Register and sends a Register
FIS to the host
30 sec
PIO Data In
command
command
Device Busy after a Register
FIS to issue a command
FIS to issue a command
The host sets proper values
in the registers and sends a
Register FIS
in the registers and sends a
Register FIS
The host sets BSY(=1) to the
Status Register
Status Register
400 ns
PIO SETUP FIS for data-in
transfer
transfer
The host sets BSY(=1) to the
Status Register
Status Register
The device sets BSY(=0) and
DRQ(=1) to the Status
Register and sends a PIO
SETUP FIS to the host.
DRQ(=1) to the Status
Register and sends a PIO
SETUP FIS to the host.
30 sec
Device Busy after data-in
transfer
transfer
A PIO SETUP FIS is
transferred to the host.
transferred to the host.
The host sets BSY(=1) to the
Status Register
Status Register
400 ns
PIO Data
Out
Command
Out
Command
Device Busy after a Register
FIS to issue a command
FIS to issue a command
The host sets proper values
in the registers and sends a
Register FIS
in the registers and sends a
Register FIS
The host sets BSY(=1) to the
Status Register
Status Register
400 ns
Device Busy after data-out
transfer
transfer
The host sends a Data FIS to
the device.
the device.
The host sets BSY(=1) to the
Status Register
Status Register
400 ns
PIO SETUP FIS for data-out
transfer
transfer
The host sets BSY(=1) to the
Status Register
Status Register
The device sets BSY(=0) and
DRQ(=1) to the Status
Register and sends a PIO
SETUP FIS to the host.
DRQ(=1) to the Status
Register and sends a PIO
SETUP FIS to the host.
30 sec
Table 180 Timeout Values