Advance Information

ATA-Disk Module

SST58SM008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192

SST58LM008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192

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©2001 Silicon Storage Technology, Inc.

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3.2.1.5 Idle - 97H or E3H

This command causes the ADM to set BSY, enter the Idle Mode, clear BSY and generate an interrupt. If the

sector count is non-zero, it is interpreted as a timer count with each count being 5 milliseconds and the

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

enabled, the timer count is set to 3, with each count being 5 ms. Note that this time base (5 msec) is different

from the ATA specification.

3.2.1.6 Idle Immediate - 95H or E1H

This command causes the ADM to set BSY, enter the Idle Mode, clear BSY and generate an interrupt.

3.2.1.7 Initialize Drive Parameters - 91H

This command enables the host to set the number of sectors per track and the number of heads per

cylinder. Only the Sector Count and the Drive/Head registers are used by this command.

Bit ->

76

54

32

10

Command (7)

97H or E3H

C/D/H (6)

XDrive

X

Cyl High (5)

X

Cyl Low (4)

X

Sec Num (3)

X

Sec Cnt (2)

Timer Count (5 msec increments)

Feature (1)

X

Bit ->

76

54

32

10

Command (7)

95H or E1H

C/D/H (6)

XDrive

X

Cyl High (5)

X

Cyl Low (4)

X

Sec Num (3)

X

Sec Cnt (2)

X

Feature (1)

X

Bit ->

76

54

32

10

Command (7)

91H

C/D/H (6)

X

0

X

Drive

Max Head (no. of heads-1)

Cyl High (5)

X

Cyl Low (4)

X

Sec Num (3)

X

Sec Cnt (2)

Number of Sectors

Feature (1)

X