30

 

U Series CE Family Product Manual, Rev. A

 

09H

PIO mode 1

 

0AH

PIO mode 2

 

0BH

PIO mode 3

 

0CH

PIO mode 4 (default)

 

20H

Multiword DMA mode 0

 

21H

Multiword DMA mode 1

 

22H

Multiword DMA mode 2

 

40H

Ultra DMA mode 0

 

41H

Ultra DMA mode 1

 

42H

Ultra DMA mode 2

 

43H

Ultra DMA mode 3

 

44H

Ultra DMA mode 4

 

45H

Ultra DMA mode 5

05H

Enable advanced power management.

42H

Auto Acoustic Management

 

FEH

Performance Seek

 

80H

Quiet Acoustic Seek

55H

Disable read look-ahead (read cache) feature.

82H

Disable write cache.

AAH

Enable read look-ahead (read cache) feature (default).

Note. At power-on, or after a hardware or software reset, the default values of the features are as indicated above.

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Seagate ST340810ACE, ST320410ACE, ST380020ACE, ST360020ACE manual 0AH