Hitachi HTS541040G9AT00 Specifications - Page 217

Timings

Page 217 highlights

14.0 Timings The timing of BSY and DRQ in Status Register are shown in the table below. Table 139: Time-out values INTERVAL START STOP Power On Device Busy After Power On Power On Status Register BSY=1 Device Ready After Power On Power On Status Register BSY=0 and RDY=1 Software Reset Device Busy After Soft- Device Control Regis- ware Reset ter RST=1 Status Register BSY=1 Device Ready After Software Reset Device Control Regis- Status Register BSY=0 ter RST=0 After RST=1 and RDY=1 Hard Reset Device Busy After Hard Bus RESET Signal Reset Asserted Status Register BSY=1 Device Ready After Hard Reset Bus RESET Signal Asserted Status Register BSY=0 and RDY=1 Data In Command Device Busy After Com- OUT To Command mand Code Out Register Status Register BSY=1 Interrupt, DRQ For Data Status Register BSY=1 Status Register BSY=0 Transfer In and DRQ=1 Interrupt Device Busy After Data 256th Read From Data Status Register BSY=1 Transfer In Register Data Out Com- Device Busy After Com- OUT to Command Reg- Status Register BSY=1 mand mand Code Out ister Device Busy After Data 256th Write From Data Status Register BSY=1 Transfer Out Register Interrupt For Data Transfer Out Status Register BSY=1 Status Register BSY=0 and RDY=1 Interrupt Non-Data Command Device Busy After Com- OUT to Command Reg- Status Register BSY=1 mand Code Out ister Interrupt For Command Status Register BSY=1 Interrupt Complete DMA Data Transfer Command Device Busy After Com- OUT to Command Reg- mand Code Out ister Status Register BSY=1 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 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 system time-out would occur for the device. Travelstar 5K100 Hard Disk Drive Specification 203

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Travelstar 5K100 Hard Disk Drive Specification
203
14.0
Timings
The timing of BSY and DRQ in Status Register are shown in the table below.
The abbreviations "ns", "
µ
s", "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.
Table 139: Time-out values
INTERVAL
START
STOP
TIME-OUT
Power On
Device Busy After
Power On
Power On
Status Register BSY=1
400 ns
Device Ready After
Power On
Power On
Status Register BSY=0
and RDY=1
31 sec
Software
Reset
Device Busy After Soft-
ware Reset
Device Control Regis-
ter RST=1
Status Register BSY=1
400 ns
Device Ready After
Software Reset
Device Control Regis-
ter RST=0 After RST=1
Status Register BSY=0
and RDY=1
31 sec
Hard Reset
Device Busy After Hard
Reset
Bus RESET Signal
Asserted
Status Register BSY=1
400 ns
Device Ready After
Hard Reset
Bus RESET Signal
Asserted
Status Register BSY=0
and RDY=1
31 sec
Data In Com-
mand
Device Busy After Com-
mand Code Out
OUT To Command
Register
Status Register BSY=1
400 ns
Interrupt, DRQ For Data
Transfer In
Status Register BSY=1
Status Register BSY=0
and DRQ=1 Interrupt
30 sec
Device Busy After Data
Transfer In
256th Read From Data
Register
Status Register BSY=1
10
µ
s
Data Out Com-
mand
Device Busy After Com-
mand Code Out
OUT to Command Reg-
ister
Status Register BSY=1
400 ns
Device Busy After Data
Transfer Out
256th Write From Data
Register
Status Register BSY=1
5
µ
s
Interrupt For Data
Transfer Out
Status Register BSY=1
Status Register BSY=0
and RDY=1 Interrupt
30 sec
(Note 1)
Non-Data
Command
Device Busy After Com-
mand Code Out
OUT to Command Reg-
ister
Status Register BSY=1
400 ns
Interrupt For Command
Complete
Status Register BSY=1
Interrupt
30 sec
(Note 2)
DMA Data
Transfer Com-
mand
Device Busy After Com-
mand Code Out
OUT to Command Reg-
ister
Status Register BSY=1
400 ns