Table 66 Check Power Mode Command (E5H/98H); Check Power Mode (E5H/98H) - Hitachi HDS723020BLA642 Specifications

11.1 Check Power Mode (E5h/98h)

Command Block Output Registers
Register
Data
Feature
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
Error Register
7 6 5
CRC UNC 0
0 0 0

Table 66 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 The power mode code. The command returns 0 in the Sector Count Register if the
device is in Standby or Sleep mode. Otherwise, the Sector Count Register will be set to
0FFh.
7 6 5 4 3 2 1
- - - - - - -
- - - - - - -
- - - - - - -
- - - - - - -
- - - - - - -
- - - - - - -
1 - 1 D - - -
1 1 1 0 0 1 0
4 3 2 1
IDN 0 ABT T0N AMN
0 0 V 0
Hitachi hard disk drive specifications
Command Block Input Registers
0 Register 7
- Data -
- Error
- Sector Count V
- Sector Number -
- Cylinder Low -
- Cylinder High -
- Device/Head -
1 Status
Status Register
0 7 6 5
BSY RDY DF DSC DRQ COR IDX ERR
0 0 V 0
111
6 5 4 3 2 1 0
- - - - - - -
...See Below...
V V V V V V V
- - - - - - -
- - - - - - -
- - - - - -
- - - - - - -
...See Below...
4 3 2 1 0
- - 0 - V