Seagate BARRACUDA GREEN ST2000DL003 Manual download pdf (Page 35)

Barracuda Green SATA Product Manual, Rev. B 35

www.seagate.com

Serial ATA Interface

4.3.2 Set Features command

This command controls the implementation of various features that the drive supports. When the drive receives

this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an interrupt. If

the value in the register does not represent a feature that the drive supports, the command is aborted. Power-on

default has the read look-ahead and write caching features enabled. The acceptable values for the Features

Table 9 Set Features command values

Enable write cache (default).

Set transfer mode (based on value in Sector Count register).

Sector Count register values:

Set PIO mode to default (PIO mode 2).

Set PIO mode to default and disable IORDY (PIO mode 2).

PIO mode 0

PIO mode 1

PIO mode 2

PIO mode 3

PIO mode 4 (default)

Multiword DMA mode 0

Multiword DMA mode 1

Multiword DMA mode 2

Ultra DMA mode 0

Ultra DMA mode 1

Ultra DMA mode 2

Ultra DMA mode 3

Ultra DMA mode 4

Ultra DMA mode 5

Ultra DMA mode 6

Enable use of SATA features

Disable read look-ahead (read cache) feature.

Disable write cache

Disable use of SATA features

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

Report full capacity available

Note

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

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 41 42

No comments

Seagate BARRACUDA GREEN ST2000DL003 Manual Page 35