ZiLOG System 8000 Hardware Reference Manual

HRM Zilog
Table 3-2. Fault Indicator
Status Bit Fault Status
HRM
Code
ST8 ST4 ST2 STI (Hex)
Fault
Description
o
o
o
o
o
o
o
o
1
o
o
o
2
4
DC motor failure
(DMFL)
VCM over heat
(VCMHT)
Initial seek time
out (INTMOT)
Control check 1
(CTCK 1)
indicates spindle
motor failure.
indtcates VCM
over'-heating.
indicates initial
seek has terminated
with time-out.
indi.cates that a
Read/Write command
was issued during
busy status.
o
o
o
o
o
5
6
7
Control check 2 indicates that write
(CTCK2) gate was issued
during a fault
condition.
Read/write check 1 indicates that write
(RWCK1) gate was issued
during off-track.
Read/write check 2 indicates that write
(RWCK2) current did not flow
to the head during
a Write operation.
3-22
o
o
o
o
o
o
o
8
9
A
Read/write check 3
(RWCK3)
Read/write check 4
(RWCK4)
Time-out (TMOT)
Zilog
indicates that write
gate was issued
during File-Protected
status.
indicates that write
gate was issued
during a multihead-
sel ec ted status ..
indicates that seek
or RTZ sequence was
not terminated within
500 ms.
3-22

ZiLOG System 8000 Specifications

General

Brand	ZiLOG
Model	System 8000
Category	Desktop
Language	English