Motorola CPU32 User's Guide download pdf (Page 18)

Power-ON/Power-OFF Sequence

Listed below are the sequences for powering on and off a

fully-connected preprocessor system. Simply stated, your target

system is always the last to be powered ON.

For powering OFF, the target system is the first to be powered OFF,

then the processor probe (if you have one), then the logic analyzer.

The HP E2480A Preprocessor Interface can be powered from either a logic

analyzer or the software probe. If both devices are attached to the

preprocessor, the logic analyzer supplies the power. If the logic analyzer cables

are removed while the preprocessor is connected to either a powered target or

the software probe, the preprocessor may appear to be powered, but it isn’t. If

this occurs, power off or remove all devices attached to the preprocessor, then

reattach or repower in the proper sequence so that the preprocessor interface

correctly identifies the power source.

For a stand-alone logic analyzer system

With all components connected, power on your system in the

following order:

1. Logic analyzer.

2. Processor probe (if you have one).

3. Target system.

For a prototype analyzer system

1. Turn on the prototype analyzer system. The Measurement Setup Assistant

will guide you through the process of connecting and configuring.

2. When the system is configured, turn on your processor probe (if you have

one), and finally turn on your target system.

E2480A Motorola CPU32 Preprocessor Interface 1-9

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Motorola CPU32 User's Guide Page 18