ATA C
OMMAND
B
LOCK
AND
S
ET
D
ESCRIPTION
SSD-P
XXX
(I)-3100 D
ATA
S
HEET
S
ILICON
S
YSTEMS
P
ROPRIETARY
This document and the information contained within it is confidential and proprietary to SiliconSystems, Inc.
All unauthorized use and/or reproduction is prohibited.
3100P-06DSR
P
AGE
79
F
EBRUARY
2, 2009
Set Features — EFh
The Set Features command allows the host to configure the feature set of the
device according to the attributes listed in
Table 65
.
On power-up or following a hardware reset, the device is set to the default
mode 81h.
Table 64: Set Features — EFh
Register
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Feature
Feature
Sector Count
X
Sector Number
X
Cylinder Low
X
Cylinder High
X
Drive Head
X
X
X
Drive
X
Command
EFh
Table 65: Set Features’ Attributes
Feature
Operation
01h
Enable 8-bit data transfer
66h
Disable reverting to power on defaults
81h
Disable 8-bit data transfer
BBh
4 bytes of data apply on Read/Write Long commands
CCh
Enable revert to power on defaults