Datasheet

13.5.3 Execute Device Diagnostic (90h)
...See Below...Status00001001Command
--------Device/Head-----1-1Device/Head
--------Cylinder High--------Cylinder High
--------Cylinder Low--------Cylinder Low
--------Sector Number--------Sector Number
--------Sector Count--------Sector Count
...See Below...Error--------Feature
--------Data--------Data
01234567Register01234567Register
Command Block Input RegistersCommand Block Output Registers
000--000VVVVVVV0
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCBBK
0123456701234567
Status RegisterError Register
Figure 76. 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. Refer to Figure 63 on page 64 for the definition.
Hard disk drive specification for DSCM-11000/-10512/-10340
89