Samsung SP0401N Product Manual page 62

DISK DRIVE OPERATION
Class
1 Seek
1 Set Features
1 Set Max Address
1 Set Max Address Extended
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)
3 Write DMA Extended
3 Write Log Extended
2 Write Long (w/retry)
2 Write Long (w/o retry)
3 Write Multiple
3 Write Multiple Extended
2 Write Sector(s) (w/retry)
2 Write Sector(s) (w/o retry)
2 Write Sector(s) Extended
Legend:
CY = Cylinder register
DH = Device/Head register
FR = Feature register
y The register contains a valid parameter for this command. For the Device/Head register, y
means both the device and head parameters are used, Y means both device and other bits.
D Only the drive parameter is valid and not the head parameter.
d The device parameter is valid; the usage of the head parameter is vendor-specific.
D* Address to Device 0, but both devices execute it.
*1 Smart Enable/Disable Auto-save.
*2. Maintained for compatibility.
SpinPoint P80 Product Manual Rev. 01
Table 6-4 Command Codes and Parameters (continued)
COMMAND
DESCRIPTION
PARAMETER USED
CODE FR SC
7xh *2
EFh y
F9h
37h
C6h y
99h, E6h
B0h y *1
96h, E2h y
94h, E0h
E8h
CAh y
CBh *2 y
35h y
3Fh y
32h *2 y
33h *2 y
C5h y
39h y
30h *2 y
31h *2 y
34h y
SC = Sector Count register
SN = Sector Number register
SN CY DH
y y y
D
y y Y
y y Y
D
D
y y D
D
D
D
y y Y
y y Y
y y Y
y y 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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