Time-Out Values; Table 137. Time-Out Values - Hitachi 7K100 - Travelstar - Hard Drive Specifications

14.0 Time-out values

The timing of BSY and DRQ in Status Register are shown in the table below.
Table 137: Time-out values
Power On Device Busy After
Power On
Device Ready After
Power On
Software Device Busy After Soft-
Reset ware Reset
Device Ready After
Software Reset
Hard Reset Device Busy After Hard
Reset
Device Ready After
Hard Reset
Data In Com- Device Busy After Com-
mand mand Code Out
Interrupt, DRQ For Data
Transfer In
Device Busy After Data
Transfer In
Data Out Com- Device Busy After Com-
mand mand Code Out
Device Busy After Data
Transfer Out
Interrupt For Data
Transfer Out
Non-Data Device Busy After Com-
Command mand Code Out
Interrupt For Command
Complete
DMA Data Device Busy After Com-
Transfer Com- mand Code Out
mand
The abbreviations "ns", "µs", "ms" and "sec" mean nanoseconds, microseconds, milliseconds, and seconds,
respectively.
We recommend that the host system execute Soft reset and then retry to issue the command if the host sys-
tem time-out would occur for the device.
INTERVAL
Power On
Power On
Device Control Regis-
ter RST=1
Device Control Regis-
ter RST=0 After RST=1
Bus RESET Signal
Asserted
Bus RESET Signal
Asserted
OUT To Command
Register
Status Register BSY=1
256th Read From Data
Register
OUT to Command Reg-
ister
256th Write From Data
Register
Status Register BSY=1
OUT to Command Reg-
ister
Status Register BSY=1
OUT to Command Reg-
ister
Travelstar 7K100 Hard Disk Drive Specification
START
Status Register BSY=1
Status Register BSY=0
and RDY=1
Status Register BSY=1
Status Register BSY=0
and RDY=1
Status Register BSY=1
Status Register BSY=0
and RDY=1
Status Register BSY=1
Status Register BSY=0
and DRQ=1 Interrupt
Status Register BSY=1
Status Register BSY=1
Status Register BSY=1
Status Register BSY=0
and RDY=1 Interrupt
Status Register BSY=1
Interrupt
Status Register BSY=1
197
STOP TIME-OUT
400 ns
31 sec
400 ns
31 sec
400 ns
31 sec
400 ns
30 sec
10 µs
400 ns
5 µs
30 sec
(Note 1)
400 ns
30 sec
(Note 2)
400 ns