Datasheet

13.5.23 Standby (E2h/96h)
...See Below...Status01000111Command
--------Device/Head----D1-1Device/Head
--------Cylinder High--------Cylinder High
--------Cylinder Low--------Cylinder Low
--------Sector Number--------Sector Number
--------Sector CountVVVVVVVVSector Count
...See Below...Error--------Feature
--------Data--------Data
01234567Register01234567Register
Command Block Input RegistersCommand Block Output Registers
V00-V0V000V00000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCBBK
0123456701234567
Status RegisterError Register
Figure 100. Standby Command (E2h/96h)
The Standby command causes the device to enter the Standby Mode immediately, and set the auto
power down timeout parameter (standby timer).
When this command is issued, the device confirms the completion of the cached write commands before
it asserts INTRQ. Then the device is spun down, but the interface remains active.
If the device is already spun down, the spin down sequence is not executed.
During the Standby mode the device will respond to commands, but there is a delay while waiting for the
spindle to reach operating speed.
The timer starts counting down when the device returns to Idle mode.
Timeout Parameter. If zero, the timeout interval (Standby Timer) is NOT dis-
abled, but the timeout interval is set to 109 minutes automatically. If other than
zero, the timeout interval is set for (Timeout Parameter x5) seconds.
When the automatic power down sequence is enabled, the device will enter
Standby mode automatically if the timeout interval expires with no device ac-
cess from the host. The timeout interval will be reinitialized if there is a device
access before the timeout interval expires.
Sector Count
Output Parameters To The Device
Hard disk drive specification for DSCM-11000/-10512/-10340
119