IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive - 14 Time-Out Values; Figure 136. Time-Out Values

14.0 Time-out values
The timing of BSY and DRQ in Status Register are shown in the table below.
400 nsStatus Register
BSY=1
OUT to Command
Register
Device Busy
After Command
Code Out
DMA Data
Transfer
Command
30 sec
(Note 2.)
InterruptStatus Register
BSY=1
Interrupt For
Command
Complete
400 nsStatus Register
BSY=1
OUT to Command
Register
Device Busy
After Command
Code Out
Non-Data
Command
30 sec
(Note 1.)
Status Register
BSY=0 and RDY=1
Interrupt
Status Register
BSY=1
Interrupt For
Data Transfer
Out
5 usStatus Register
BSY=1
256th Write
From Data
Register
Device Busy
After Data
Transfer Out
700 us
(Note 3.)
Status Register
BSY=0 and DRQ=1
Status Register
BSY=1
Data Request
For Data
Transfer Out
400 nsStatus Register
BSY=1
OUT to Command
Register
Device Busy
After Command
Code Out
Data Out
Command
10 usStatus Register
BSY=1
256th Read From
Data Register
Device Busy
After Data
Transfer In
30 secStatus Register
BSY=0 and DRQ=1,
Interrupt
Status Register
BSY=1
Interrupt, DRQ
For Data
Transfer In
400 nsStatus Register
BSY=1
OUT To Command
Register
Device Busy
After Command
Code Out
Data In
Command
31 secStatus Register
BSY=0 and RDY=1
Bus RESET
Signal Asserted
Device Ready
After Hard
Reset
400 nsStatus Register
BSY=1
Bus RESET
Signal Asserted
Device Busy
After Hard
Reset
Hard Reset
31 secStatus Register
BSY=0 and RDY=1
Device Control
Register RST=0
After RST=1
Device Ready
After Software
Reset
400 nsStatus Register
BSY=1
Device Control
Register RST=1
Device Busy
After Software
Reset
Software
Reset
31 secStatus Register
BSY=0 and RDY=1
Power OnDevice Ready
After Power On
400 nsStatus Register
BSY=1
Power OnDevice Busy
After Power On
Power On
TIME-OUTSTOPSTARTINTERVAL
Figure 136. Time-out values
Command category is referred to in Section 12.0, "Command protocol" on page 103.
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 48GH, 30GN & 15GN hard disk drive specifications
197