Method and Device for Management of an Electrical Power-Up of a Sector of an Electronic Circuit

摘要

A chain of switches is connected between a first power supply line coupled to a first voltage and a second power supply line coupled to the sector. These switches are controllable by a control signal. The control signal is propagated from a first end of the first chain towards a second end of the first chain without control of the switches during this first propagation. The control signal is then propagated in the reverse direction from the second end towards the first end with a control of the switches during this second propagation starting from a group of at least one switch situated at the second end. There is a detection of the arrival of the control signal at the first end of the chain at the end of its propagation in the reverse direction.

主权项

1. A method for management of an electrical power-up of at least one sector of an electronic circuit, the electrical power-up using a first chain of switches respectively coupled between a first power supply line coupled to a first voltage and a second power supply line coupled to the sector, the switches being controllable by a control signal so as to close the switches, the method comprising:
propagating the control signal in a forward direction from a first end of the first chain towards a second end of the first chain without controlling the switches; then propagating the control signal in a reverse direction from the second end towards the first end, wherein the switches are controlled while propagating in the reverse direction starting from a switch located at the second end; detecting arrival of the control signal at the first end of the first chain at the end after propagating the control signal in the reverse direction; and delivering a state signal upon attaining a delivery condition, the delivery condition including detection of the arrival of the control signal.