IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive - Check Power Mode (E5 H;98 H); Figure 75. Check Power Mode Command (E5 H;98 H)

13.1 Check Power Mode (E5h/98h)
see belowStatus1 1 1 0 0 1 0 1Command
- - - - - - - -Device/Head1 - 1 D - - - -Device/Head
- - - - - - - -Cylinder High- - - - - - - -Cylinder High
- - - - - - - -Cylinder Low- - - - - - - -Cylinder Low
- - - - - - - -Sector Number- - - - - - - -Sector Number
V V V V V V V VSector Count- - - - - - - -Sector Count
see belowError- - - - - - - -Feature
- - - - - - - -Data- - - - - - - -Data
7 6 5 4 3 2 1 0Register7 6 5 4 3 2 1 0Register
Command Block Input RegistersCommand Block Output Registers
V-0--0V000V00000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCCRC
0123456701234567
Status RegisterError 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.
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
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