Table 6-4 Command Codes And Parameters - Samsung SPINPOINT V40 Series Product Manual

3.5” hard disk drives
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DISK DRIVE OPERATION
Class
1
Check Power Mode
2
Download Micro code
1
Execute Device Diagnostic
1
Flush Cache
2
Format Track
1
Identify Device
1
Idle
1
Idle Immediate
1
Initialize Drive Parameter
1
Read Buffer
1
Read DMA (w/retry)
1
Read DMA (w/o retry)
1
Read Long (w/retry)
1
Read Long (w/o retry)
1
Read Multiple
1
Read Native Max Address
1
Read Sector(s) (w/retry)
1
Read Sector(s) (w/o retry)
1
Read Verify Sector(s) (w/retry)
1
Read Verify Sector(s) (w/o retry)
1
Recalibrate
1
Seek
1
Set Features
1
Set Max Address
1
Set Multiple Mode
1
Sleep Mode
1
Smart
1
Standby
1
Standby Immediate
2
Write Buffer
3
Write DMA (w/retry)
3
Write DMA (w/o retry)
2
Write Long (w/retry)
2
Write Long (w/o retry)
3
Write Multiple
2
Write Sector(s) (w/retry)
2
Write Sector(s) (w/o retry)
Legend:
CY = Cylinder register
DH = Device/Head register
FR = Feature register
54

Table 6-4 Command Codes and Parameters

COMMAND
DESCRIPTION
PARAMETER USED
CODE
FR
SC
98h, E5h
y
92h
90h
E7h
50h
ECh
97h, E3h
y
95h, E1h
91h
y
E4h
C8h
y
C9h
y
22h
y
23h
y
C4h
y
F8h
20h
y
21h
y
40h
y
41h
y
1xh
7xh
EFh
y
F9h
C6h
y
99h, E6h
B0h
y
*1
96h, E2h
y
94h, E0h
E8h
CAh
y
CBh
y
32h
*2
y
33h
*2
y
C5h
*2
y
30h
*2
y
31h
*2
y
SC = Sector Count register
SN = Sector Number register
SpinPoint V40 Product Manual
SN
CY
DH
D
D
D*
D
d
D
D
D
y
D
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
D
y
y
y
y
y
y
y
y
y
y
y
y
D
y
y
y
D
y
y
y
D
D
y
y
D
D
D
D
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y
y

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