Read Self-Test Results
Type:
Purpose:
Description:
HP-IB
Sequence:
ATN
(10~DDRSI
Pnmary
Talk
ATN
Pllll111
I
Secondary
I
HP
9895A Disc Memory
Command
Set
A-13
Sense.
The 9895A returns the results of
the
last self-test it has
performed. This
is
useful after
the
Initiate Self-Test com-
mand
or
after the 9895A has
been
powered
on
(it performs
a self-test
at
power
on).
After receiving the self-test secondary, the 9895A makes
two bytes of the self-test results available. The
second
byte
will
be
tagged with an EOI.
Eor
ATN
P P
~
/EHUUFSSS
I
I
SSSTTTTA
I
Self-Test
Results
~
/
PI011111/
Vntalk
Where: E
- Error bit.
If on,
then
an
error
has occurred.
See
Section
Status:
Parallel Poll:
H -
Head
number. Indicates which
head
the
read
or
write test failed on.
UU
- Unit number. Indicates which unit was select-
ed
when
the
error
occurred.
F -
Format
of operation. Indicates
if
the control-
ler was
in
IBM
(0)
or
HP
(1)
operation
at
the
time of failure.
SSSSSS
-
Subtest
number.
Number
of the failing
sub-
test.
TTTT - Test number.
Number
of
the
failing test.
A -
"*,,
LED. Indicates state of
the
"*,,
LED.
Note
for
an
explanation of self-test results.
No errors.
Sl
- 0
Stat
2 -
Unchanged
DSJ -
Unchanged
If
less
than
the
specified
number
of bytes is
accepted
by
the
HP-IB controller, the parallel poll
response
will
be
re-
enabled
by
the Untalk
command.
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