Abstract:
An integrated circuit comprising test circuitry, the test circuitry comprising a counter for counting clock signals and having an output for providing a control signal. The counter being arranged to have an internal state, and the counter being arranged to change the control signal on the internal state of counter reaching a predetermined value.
Abstract:
An integrated circuit comprising: functional circuitry; test circuitry connected to the functional circuitry, wherein the test circuitry is arranged to control the testing of the functional circuitry; and clock signal generating circuitry connected to both the functional circuitry and the test circuitry. Wherein the test circuitry is arranged to use the clock signal for testing the functional circuitry.