Identify Device (Ech); Figure 85. Identify Device Command (Ech) - IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive Specifications

13.8 Identify Device (ECh)

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

Figure 85. Identify Device command (ECh)

The Identify Device command requests the device to transfer configuration information to the host. The
device will transfer a sector to the host containing the information in Figure 86 beginning on the next page.
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 - 1 D - - - -
1 1 1 0 1 1 0 0
4 3 2 1
IDN 0 ABT T0N AMN
0 0 V 0
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
Command Block Input Registers
Register
Data
Error
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Status
Status Register
0 7 6 5
BSY RDY DF
0 0 V 0
125
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
4 3 2 1
DSC DRQ COR IDX ERR
- - 0 - V
0