Specification

IDLE (E3h or 97h)

This command causes the device to set BSY, enter the Idle mode, clear BSY and generate an interrupt. If sector count

is non-zero, the automatic power down mode is enabled. If the sector count is zero, the automatic power mode is

disabled.

IDLE IMMEDIATE (E1h or 95h)

This command causes the device to set BSY, enter the Idle(Read) mode, clear BSY and generate an interrupt.

SLEEP (E6h or 99h)

This command causes the device to set BSY, enter the Sleep mode, clear BSY and generate an interrupt.

STANDBY (E2h or 96h)

This command causes the device to set BSY, enter the Sleep mode (which corresponds to the ATA “Standby”

Mode), clear BSY and return the interrupt immediately.

STANDBY IMMEDIATE (E0h or 94h)

This command causes the drive to set BSY, enter the Sleep mode (which corresponds to the ATA “Standby” Mode),

clear BSY and return the interrupt immediately.

Security Mode Feature Set

SECURITY SET PASSWORD (F1h)

This command set user password or master password. The host outputs sector data with PIO data-out protocol to indicate

the information defined in the following table.

Security set Password data content1

Word Content

Control word

Bit 0

Bits 1-7

Bit 8

Bits 9

Identifier

Reserved

Security level

Reserved

0=set user password

1=set master password

0=High

1=Maximum

Password (32 bytes)

255

Reserved