(-
(
r
, /
Routine
Number
Description
PT25V5
Same
as
PT25V1 except repeats
five times
if
there are no errors.
PT25V10
Same
as
PT25V1 except repeats
10 times
if
there are no errors.
COMMUNICATIONS
ADAPTER/SERIAL
I/O
ADAPTER
PROGRAM
AND
DIAGNOSTIC
ROUTINES
Expected
Information
XX XX
SA
SB
XX XX
EC
TS
XX XX
SA
SB
XX
XX
EC
TS
When the Communications Adapter/Serial
I/O
Adapter
features are installed, the diagnostic program provides:
• A test
of
all
of
the status and control circuitry on the
expansion feature card. The test further isolates
problems
to
either the 5100 Portable Computer or
customer provided data set/communications facility.
• A test
of
the long space interrupt and the timer
interrupt
of
the Communications Adapter feature. The
long space interrupt detects
an
end
of
transmission
request form the remote facility. The timer interrupt
controls the data sampling and data transmission
rates.
Error
Code
Meaning
50-59
Returns status bytes A and
B,
an
error code, and test status.
50-59
Returns status bytes A and
B,
an
error code, and test status.
• A test
of
the timer interrupt
of
the Serial
I/O
Adapter
feature. The timer interrupt controls the data
sampling and data transmission rates.
• A test
for
each
of
the interrupt sources, both
for
the
ability
to
set the interrupt
via
the hardware and reset
the interrupt via the microcode.
• Data tests
of
various bit combinations that isolate
problems between the 5100 Portable Computer and
customer provided modem/communications facility
using a manually attached wrap connector
to
further
isolate problems
to
the defective
FRU
in the 5100.
The diagnostic routines are used in MOl 820. The
routine numbers shown
in
the following chart are used
in
MOl 820.
Diagnostic Program Routines 3-55
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