Hitachi IC25N040ATCS04-0 Specifications - Page 124

Check Power Mode E5h/98h

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13.1 Check Power Mode (E5h/98h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count Sector Number Cylinder Low Cylinder High Device/Head 1 - 1 D - - - - Command 1 1 1 0 0 1 0 1 Command Block Input Registers Register 7 6 5 4 3 2 1 0 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 7 6 5 4 3 210 CRC UNC 0 IDN 0 ABT T0N AMN 0 0 0 0 0 V00 Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V 0 - - 0 -V Figure 75. Check Power Mode command (E5h/98h) The Check Power Mode command will report whether the device is spun up and the media is available for immediate access. Input parameters from the device Sector Count This indicates the power mode code. The command returns FFh in the Sector Count Register if the spindle motor is at speed and the device is not in Standby or Sleep mode. Otherwise, the Sector Count Register is set to 0. Hitachi Travelstar 60GH & 40GN hard disk drive specifications 111

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13.1 Check Power Mode (E5h/98h)
see below
Status
1 1 1 0 0 1 0 1
Command
- - - - - - - -
Device/Head
1 - 1 D - - - -
Device/Head
- - - - - - - -
Cylinder High
- - - - - - - -
Cylinder High
- - - - - - - -
Cylinder Low
- - - - - - - -
Cylinder Low
- - - - - - - -
Sector Number
- - - - - - - -
Sector Number
V V V V V V V V
Sector Count
- - - - - - - -
Sector Count
see below
Error
- - - - - - - -
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
-
-
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 75. Check Power Mode command (E5h/98h)
The Check Power Mode command will report whether the device is spun up and the media is available for
immediate access.
Input parameters from the device
Sector Count
This indicates the power mode code. The command returns FFh in the Sector
Count Register if the spindle motor is at speed and the device is not in Standby or
Sleep mode. Otherwise, the Sector Count Register is set to 0.
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
111