IBM DTLA-305040 - Deskstar 41.1 GB Hard Drive, Specifications, Page: 122 / 212

12.2 Execute Device Diagnostic (90h)
see below Status 1 0 0 1 0 0 0 0 Command
- - - - - - - -
Device/Head
1 - 1 - - - - -
Device/Head
- - - - - - - - Cylinder High - - - - - - - - Cylinder High
- - - - - - - - Cylinder Low - - - - - - - - Cylinder Low
- - - - - - - -
Sector Number
- - - - - - - -
Sector Number
- - - - - - - - Sector Count - - - - - - - - Sector Count
see below Error - - - - - - - - Feature
- - - - - - - -
Data
- - - - - - - -
Data
7 6 5 4 3 2 1 0
Register
7 6 5 4 3 2 1 0
Register
Command Block Input
Registers
Command Block Output
Registers
0 – 0 – – 0 V 0 V V V V V V V V
ERR IDX COR DRQ DSC DF RDY BSY AMN T0N ABT 0 IDN 0 UNC CRC
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
Status Register Error Register
Figure 87. Execute Device Diagnostic Command (90h)
The Execute Device Diagnostic command performs the internal diagnostic tests implemented by the
device. The results of the test are stored in the Error Register.
The normal Error Register bit definitions do not apply to this command. Instead, the register contains a
diagnostic code. See Figure 71 on page 26 for the definition.
Deskstar 40GV & 75GXP hard disk drive specifications
110