SST58LM024 datasheet(20/40 Pages) SST

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ATA-Disk Module

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S71193-01-000

9/01

519

3.2.1.1 Check Power Mode - 98H or E5H

This command checks the power mode.

Because SST ADM can recover from sleep in 200 ns, Idle Mode is never enabled.

ADM sets BSY, sets the Sector Count Register to 00H, clears BSY and generates an interrupt.

3.2.1.2 Execute Drive Diagnostic - 90H

This command performs the internal diagnostic tests implemented by the ADM.

If the Drive bit is ignored and the diagnostic command is executed by both the Master and the Slave

with the Master responding with status for both devices.

The Diagnostic codes shown in Table 3-3 are returned in the Error Register at the end of the command.

Bit ->

Command (7)

98H or E5H

C/D/H (6)

XDrive

Cyl High (5)

Cyl Low (4)

Sec Num (3)

Sec Cnt (2)

Feature (1)

Bit ->

Command (7)

90H

C/D/H (6)

XDrive

Cyl High (5)

Cyl Low (4)

Sec Num (3)

Sec Cnt (2)

Feature (1)

TABLE

3-3: DIAGNOSTIC CODES

Code

Error Type

01H

No Error Detected

02H

Formatter Device Error

03H

Sector Buffer Error

04H

ECC Circuitry Error

05H

Controlling Microprocessor Error

8XH

Slave Error

T3-3.0 519

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