IBM DTCA-24090 Hard Drive Specifications - Page 180

FUNCTION, INTERVAL, START, TIMEOUT, DMA Data, Device Busy after, Out to Command, Status Register,

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FUNCTION DMA Data Transfer Command INTERVAL Device Busy after Command Code Out START Out to Command Register STOP Status Register BSY=1 TIMEOUT 400 ns Figure 109. Timeout Values --- Continued --- Command category is referred to 11.0, "Command Protocol" on page 89. The abbreviations "ns", "us", "ms" and "sec" mean nanoseconds, microseconds, milliseconds and seconds, respectively. We recommend that the host system executes Soft reset and then retry to issue the command if the host system timeout would occur for the device. (Note.1) (Note.2) (Note.3) For SECURITY ERASE UNIT command, the timeout value is 15 minutes. For F O R M A T UNIT command, the timeout value is 15 minutes. When the initial power mode at power on is Standby mode, and when the following commands are issued by the host as First Command, the command's timeout value of the field is 10 seconds. Security Disable Password, Security Erase Unit, Security Set Password, Security Unlock. 172 OEM Specifications of DTCA-2xxxx 2.5 inch H D D

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FUNCTION
INTERVAL
START
STOP
TIMEOUT
DMA Data
Device Busy after
Out to Command
Status Register
400 ns
Transfer
Command Code Out
Register
BSY=1
Command
Figure 109. Timeout Values --- Continued ---
Command category is referred to 11.0, “Command Protocol” on page 89.
The abbreviations "ns", "us", "ms" and "sec" mean nanoseconds, microseconds, milliseconds and seconds,
respectively.
We recommend that the host system executes Soft reset and then retry to issue the command if the host
system timeout would occur for the device.
(Note.1)
For SECURITY ERASE UNIT command, the timeout value is 15 minutes.
(Note.2)
For FORMAT UNIT command, the timeout value is 15 minutes.
(Note.3)
When the initial power mode at power on is Standby mode, and when the following commands
are issued by the host as First Command, the command's timeout value of the field is 10
seconds.
Security Disable Password, Security Erase Unit,
Security Set Password, Security Unlock.
172
OEM Specifications of DTCA-2xxxx 2.5 inch HDD