ABSTRACT
This chapter explains digital test equipment and measurement systems and typical display of a timing analyzer. It describes Illustration of the selective storage capability of state analyzer, the simplified block diagram of a signature analyzer and the simplified block diagram of a digital storage oscilloscope. The state analyzer is the second half of a logic analyzer. Data, address, and status codes are captured and displayed as they occur on the microprocessor bus. The signature analyzer captures a complex data stream from a test point on the PWB and converts it into a hexadecimal signature. To function properly, the signature analyzer requires start and stop signals, a clock input, and the data input. The start and stop inputs are derived from the circuit being tested and are used to bracket the beginning and end of the measurement window. Waveforms such as signal glitches, intermittent faults, clock jitter, and power-up sequences can be examined with the help of a digital oscilloscope.
