Check Power Mode (E5H/98H); Table 60: Check Power Mode Command (E5H/98H) - Hitachi 5K100 - Travelstar - Hard Drive Specifications

13.1 Check Power Mode (E5h/98h)

Table 60: Check Power Mode Command (E5h/98h)

Command Block Output Registers
Register
Data
Feature
Sector Count
LBA Low
LBA Mid
LBA High
Device
Command
7 6 5
CRC UNC 0
0 0 0
The Check Power Mode command will report whether the device is spun up and the media is available for immedi-
ate access.
Input parameters from the device
Sector Count
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 - 1 D - - - -
1 1 1 0 0 1 0 1
Error Register
4 3 2 1
IDN 0 ABT T0N AMN
0 0 V 0
This indicates the power mode code. The command returns FFh in the Sector Count Reg-
ister if the spindle motor is at speed and the device is not in Standby or Sleep mode. Other-
wise, the Sector Count Register is set to 0.
Travelstar 5K100 Hard Disk Drive Specification
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
0 7 6
BSY RDY DF DSC DRQ
0 0 0
102
7 6 5 4 3 2 1 0
- - - - - - - -
see below
V V V V V V V V
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
Status Register
5 4 3 2
COR IDX
0 - - 0
1 0
ERR
- V