Power-domain assignment

摘要

Example apparatus for power-domain assignment, having: a first bus-to-switch interface; a second bus-to-switch interface; a first power-domain bus, coupled to the first bus-to-switch interface; a second power-domain bus, coupled to the second bus-to-switch interface. A set of I/O signal level shifters, coupled between the first and second power-domain buses; a switch including, a set of IP block power coupling outputs; a set of IP block I/O signal paths; and a selection signal input. The switch is coupled to the first and second bus-to-switch interfaces. Wherein, in response to receiving a first signal on the selection signal input, the switch is configure to couple the first power-domain bus to the set of IP block power coupling outputs; and wherein, in response to receiving a second signal on the selection signal input, the switch is configure to couple the second power-domain bus to the set of IP block power coupling outputs.

主权项

1. An apparatus for power-domain assignment, comprising:
a first bus-to-switch interface; a second bus-to-switch interface; a first power-domain bus, coupled to the first bus-to-switch interface; a second power-domain bus, coupled to the second bus-to-switch interface; a set of I/O signal level shifters, coupled between the first and second power-domain buses; a switch including,
a set of IP block power coupling outputs;a set of IP block I/O signal paths; anda selection signal input; wherein the switch is coupled to the first and second bus-to-switch interfaces; wherein, in response to receiving a first signal on the selection signal input, the switch is configured to couple the first power-domain bus to the set of IP block power coupling outputs; and wherein in response to receiving a second signal on the selection signal input, the switch is configured to couple the second power-domain bus to the set of IP block power coupling outputs.