Command register, Table 23: command register – Silicon Image SiliconDrive SSD-D32G(I)-4300 User Manual
Page 45

ATA R
EGISTERS
SSD-D
XXX
(I)-4300 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.
4300D-00DSR
P
AGE
36
F
EBRUARY
27, 2009
C
OMMAND
R
EGISTER
The Command register specifies the ATA command code being issued to the
drive by the host. Execution of the command begins immediately following the
issuance of the command register code by the host.
See
"All but CU / E / MU / R / SD/MMC+:ATA Command Block and Set
Description" on page 120
for a listing of the supported ATA commands.
Table 23: Command Register
Operation
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Read/Write
ATA Command Code