Motorola i860 Basic Level Test Modes and Procedures, Entering Debug Mode, To enter debug mode

CHAPTER 6

BASIC LEVEL TEST MODES AND PROCEDURES

To complete basic testing of an i860 unit, you must enter a test mode to retrieve data from the unit, and perform the technician tests in the correct sequence with the appropriate equipment.

Test procedures are listed in the order in which they should be implemented. Each test contains a description of what it does, the approximate time needed to perform it, and the type of equipment required (if any).

NOTE: The unit must be powered up and registered before performing most tests.

6.1Test Modes

Some tests require that a certain mode be entered to conduct the test and/or retrieve data from the unit. The following test modes are used with this unit:

•Engineering debug mode (includes trace mode)

•Test mode

NOTE: Do not enter these modes until the unit has been powered up and the power-up sequence has been completed.

6.1.1Entering Debug Mode

Use this procedure to access the debug mode.

To enter debug mode:

1.Power up the unit. Wait until registration is complete before continuing.

NOTE: Steps 2 through 5 must be performed quickly (no more than one second between each key press).

2.Press #.

3.Press *.

4.Press Menu.

5.Press the right Scroll key. You now are in debug mode.

If you press the option key under Trace while in debug mode, you can enter trace mode. To exit trace mode, re-enter debug mode, press the option key under Trace again, and then press the option key under Exit.

In trace mode, the unit switches every five seconds between debug mode and normal operation to allow you to monitor and sample a variety of signals and signal characteristics, particularly in the SQE/Carrier and multi-data displays.

To exit debug mode, press the option key under Back.

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