
124
PQ-8P, PQ-8S
Table 7-1 (continued). Error Messages.
Error Message
Description
Probable Cause
No Interrupt on Data
A byte of data (not a
Problems in the receiver
poll) was sent and the
circuitry or problems with the
receiver circuitry did
microprocessor interrupts.
not interrupt the
microprocessor.
Output Data
The transmitter timing
This indicates an ASIC
Available Bit Bad
is not staying busy for
failure.
the proper period.
Input Data Available
The bit signaling that
A properly terminated cable
Bit Bad
data was received was
is not attached, a driver
not set as expected.
circuitry failure, a receiver
circuit failure, or an ASIC
failure.
No Interrupt on Bad
This test sends a
This indicates an ASIC
Parity or Wrong
transmission with the
failure.
Interrupt on Bad
parity purposely
Parity
invalid to test the
proper reaction.
Either no interrupt or
the wrong interrupt
was received in this
test.
Interrupt Without
During a poll test, the
This indicates an ASIC
NMI on Poll to
transmission was
failure.
Address X
received as data, not
as a poll.