Inverter l is biased in its transition region by the resistor R. Inverter 1 inputs the crystal output (sinusoidal) to provide a logic pulse train at the output of inverter ... After some time during normal operation, the microprocessor can be reset by the designer upon activation of a manual switch such as a pushbutton. ... The 68000 clears the trace bit in SR to 0 and sets the interrupt mask bits 12 11 10 in SR to 111.
|Title||:||Microprocessor Theory and Applications with 68000/68020 and Pentium|
|Publisher||:||John Wiley & Sons - 2008-09-22|