Abstract: A method and system is disclosed for spreading the power associated with digital signals being transmitted to lower electromagnetic interference (EMI) emissions. After being transmitted across a transmission line, a representation of the original digital signal is recovered and provided to a destination device.

Abstract: A power supply monitoring circuit, and a data processing system incorporating the same together with a regulated power supply and system components such as a CPU, are disclosed. The power supply monitoring circuit includes delay circuits, with the respective delays selected by the selection of capacitor values, for delaying the issuing of a "power-good" signal to the CPU after power-up until sufficient time has passed after establishment of adequate voltages on the power supply bus to allow the power supplies to stabilize, and for ignoring undervoltage faults (in generating a power supply shutdown signal) on said power supplies for a brief period of time after power-up. The stabilization and power-up delay periods may be selected independently from one another, so that the power-up delay can expire prior to the expiration of the stabilization delay.