Fluke 9000A-8080 Instruction Manual page 34

8080
address decoder U6, each latch places the condition of the associated UUT line
on the data bus. The microprocessor compares the detected UUT line levels with
the known expected result and considers any difference to be an error. Any error
conditions are indicated in the status byte sent to the troubleshooter at the
conclusion of each command.
When the RUN UUT mode is commanded, the microprocessor performs a write
to set the Run UUT flip-flop U8 . The Run UUT flip-flop causes the timing
circuits to produce the UUT ON signal as previously described for the non-RUN
UUT mode. However, the Run UUT flip-flop causes the timing circuits to be
held in a state which maintains the UUT ON signal and dedicates the
microprocessor to the UUT. In this mode, the RESET, HOLD and READY
inputs are enabled, allowing the UUT to utilize the pod microprocessor in place
of the microprocessor removed to facilitate pod connection.
The RUN UUT mode continues until a RESET signal is received from the
troubleshooter. The RESET signal causes the microprocessor to resume control
of the Processor Section.
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