Deskstar 7K160 Hard Disk Drive Specification
111
The action codes are defined in Table below.
Byte Field
Words
Description
1:0
Action Code
1
This field defines the command type and
generally specifies the type of data being
accessed, such as sector, long sector, etc.
or physical action being performed, such
as seek.
3:2
Function Code
1
This field specifies the type of access, and
varies by command. For example, this can
specify read, write, verify, etc.
X:4 Parameter1 Depends
on
command
Depends on command
Y:x+1 Parameter2
Depends
on
command
Depends on command
… …
…
…
Total
Words
256
Action Code
Block Data
TF Data
Description
0000h -
-
Reserved
0001h
Read/Write
Y
Long Sector Access
0002h
Write
N
LBA Segment Access
0003h
-
Y
Error Recovery Control
0004h -
Y
Features
Control
0005h
Read
N
SCT Data Table
0006h-BFFFh -
-
Reserved
C000h-FFFFh -
-
Vendor
Specific
Summary of Contents for Deskstar 7K160
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Page 21: ...Deskstar 7K160 Hard Disk Drive specification 7 Part 1 Functional specification ...
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Page 297: ...Write Buffer 249 Write cache function 93 Write Continuous bit 102 Write DRQ interval time 30 ...