Command Descriptions; Check Power Mode [98H, E5H]; Device Configuration Identify [B1H, Sub 02H] - Hitachi C4K60 - Travelstar Slim - Hard Drive Specifications

7.5. Command Descriptions

7.5.1. Check Power Mode [98h, E5h]

Task File Register
Command
LBA High
LBA Mid
LBA Low
Device/Head
Sector Count
Features
This command posts the power mode of the device. If the device is in, going into, or recovering from the
Standby Mode, the device sets BSY bit and set the Sector Count Register to 00h. The device then clears
BSY and generates an interrupt. If the device is in the Idle Mode, the device sets BSY, set the Sector Count
Register to FFh, clear BSY, and generate an interrupt. If the device is in the Active Mode, the device sets
BSY, set the Sector Count Register to FFh, clear BSY, and generate an interrupt.

7.5.2. Device Configuration Identify [B1h, Sub 02h]

Task File Register
Command
LBA High
LBA Mid
LBA Low
Device/Head
Sector Count
Features
The DEVICE CONFIGURATION IDENTIFY command returns a 512 byte data structure via PIO data-in
transfer. The content of this data structure indicates the selectable commands, modes, and feature sets that
the device is capable of supporting. If a DEVICE CONFIGURATION SET command has been issued
reducing the capabilities, the response to an IDENTIFY DEVICE command will reflect the reduced set of
capabilities, while the DEVICE CONFIGURATION IDENTIFY command will reflect the entire set of
selectable capabilities. The format of the Device Configuration Overlay data structure is shown in Table 7.5.
If the device has executed a previous DEVICE CONFIGURATION FREEZE LOCK command since power-
up, this device returns command aborted.
K6610170
Rev.2
Dec 22, 2004
7 6 5
X X X DRV
7 6 5
X X X DRV
4 3 2
98h or E5h
XX
XX
XX
X X
XX
XX
4 3 2
B1h
XX
XX
XX
X X
XX
02h
- 55 -
1 0
X X
1 0
X X