Datasheet

Travelstar 80GN Hard Disk Drive Specification

160

13.37 Sleep (E6h/99h)

Table 111: Sleep (E6h/99h)

This command is the only way to cause the device to enter Sleep Mode.

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, and the interface becomes inactive. The only way to recover from Sleep

Mode is with a software reset or a hardware reset.

The use of hardware reset to recover from Sleep Mode may be incompatible with continued operation of the host

system.

If the device is already spun down, the spin down sequence is not executed.

Command Block Output Registers Command Block Input Registers

Data - - - - - - - - Data - - - - - - - -

Feature - - - - - - - - Error see below

Sector Count - - - - - - - - Sector Count - - - - - - - -

LBA Low - - - - - - - - LBA Low - - - - - - - -

LBA Mid - - - - - - - - LBA Mid - - - - - - - -

LBA High - - - - - - - - LBA High - - - - - - - -

Device 1 - 1 D - - - - Device - - - - - - - -

Command 1 1 0 0 0 1 1 0 Status see below

Error Register Status Register

7654321 0 76543 21 0

CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR

00000V0 0 0V0V- 0- V