IBM IC35L040AVVN07-0 Hard Drive Specifications - Page 121

Check Power Mode E5h/98h

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11.1 Check Power Mode (E5h/98h) Command Block Output Registers Register 76543210 Data -------- Feature -------- Sector Count Sector Number Cylinder Low Cylinder High Device/Head 1 - 1 D - - - - Command 11100101 Command Block Input Registers Register 76543210 Data -------- Error see below Sector Count V V V V V V V V Sector Number Cylinder Low Cylinder High Device/Head Status see below Error Register 76543210 CRC UNC 0 IDN 0 ABT T0N AMN 00000V00 Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V 0 - - 0 -V Figure 90. Check Power Mode Command (E5h/98h) The Check Power Mode command reports whether the device is spun up and the media is available for immediate access. Input parameters from the device Sector The power mode code. The command returns FFh in the Sector Count Register if the spindle motor is at speed and the drive is not in Standby or Sleep mode. Otherwise, the Sector Count Register will be set to zero. Deskstar 120GXP hard disk drive specifications 107

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11.1 Check Power Mode (E5h/98h)
see below
Status
11100101
Command
--------
Device/Head
1-1D----
Device/Head
--------
Cylinder High
--------
Cylinder High
--------
Cylinder Low
--------
Cylinder Low
--------
Sector Number
--------
Sector Number
VVVVVVVV
Sector Count
--------
Sector Count
see below
Error
--------
Feature
--------
Data
--------
Data
76543210
Register
76543210
Register
Command Block Input
Registers
Command Block Output
Registers
V
–
0
–
–
0
V
0
0
0
V
0
0
0
0
0
ERR
IDX
COR
DRQ
DSC
DF
RDY
BSY
AMN
T0N
ABT
0
IDN
0
UNC
CRC
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Status Register
Error Register
Figure 90. Check Power Mode Command (E5h/98h)
The Check Power Mode command reports whether the device is spun up and the media is available for
immediate access.
Input parameters from the device
Sector
The power mode code. The command returns FFh in the Sector Count Register if
the spindle motor is at speed and the drive is not in Standby or Sleep mode.
Otherwise, the Sector Count Register will be set to zero.
Deskstar 120GXP hard disk drive specifications
107