MD1050-DCC M-Systems Inc., MD1050-DCC Datasheet - Page 20

• Manufacturer Part Number: MD1050-DCC
• Description: Diskonchip Ide Pro Data Sheet
• Manufacturer: M-Systems Inc.

5.1.2
This command performs self-diagnostics on various internal components of DiskOnChip IDE Pro.
Results of the diagnostics are reported in the Error register. Note that the bit definitions for the Error
register do not apply to this command. Instead, the value in the Error register is a diagnostic code.
19
01H
02H
03H
04H
05H
Sector Number
Cylinder High
Sector Count
Cylinder Low
Device/Head
Command
Code
Register
Register
Features
Status
Error
Execute Drive Diagnostics – 90h
No error detected
Formatter device error
Sector buffer error
ECC logic error
Slave failed
BSY
7
7
0
DRDY
DiskOnChip IDE Pro Data Sheet, Rev. 1.5
6
6
DF
5
5
0
OUTPUT
Diagnostic code (see below)
INPUT
Description
DSC
D
4
4
90h
DRQ
3
3
CORR
2
2
IDX
1
1
0
91-SR-012-01-8L
ERR
0
0