11.12 NOP (00h)
see below
Status
0 0 0 0 0 0 0 0
Command
Initial Value
Device/Head
1 - 1 D - - - -
Device/Head
Initial Value
Cylinder High
- - - - - - - -
Cylinder High
Initial Value
Cylinder Low
- - - - - - - -
Cylinder Low
Initial Value
Sector Number
- - - - - - - -
Sector Number
Initial Value
Sector Count
- - - - - - - -
Sector Count
see below
Error
V V V V V V V V
Feature
- - - - - - - -
Data
- - - - - - - -
Data
7 6 5 4 3 2 1 0
Register
7 6 5 4 3 2 1 0
Register
Command Block Input
Registers
Command Block Output
Registers
V–0––0V000V00000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCCRC
0123456701234567
Status RegisterError Register
Figure 110. NOP Command (00h)
This command always fails with an error. The device responds with command aborted.
Output parameters to the device
Feature Subcommand code
00H Abort any outstanding queue
01H - FFH Not abort any outstanding queue
The value of Sector Count, Sector Number, Cylinder High/Low, Device/Head set by host is not changed.
Deskstar 180GXP hard disk drive specifications
130
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