Patent ID: 11886228
Assignee: PSEMI CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 15:
16. A circuit that enables common control of an agent device by two buses using mutually exclusive arbitration, the circuit including:
(a) two decoders, each including:
(1) a common register;
(2) a bus decoder coupled to the common register within the decoder and configured to be coupled to a respective bus, the bus decoder configured to assert a write-complete signal when a write operation to the common register is completed;

(b) a multiplexer having two selectable input bus ports each coupled to the common register within respective ones of the two decoders, and an output port configured to be coupled to the agent device; and
(c) a flipflop coupled to the bus decoder of the two decoders and to the multiplexer, the flipflop configured to select an input bus port of the multiplexer in response to the assertion of a last write-complete signal from one of the two bus decoders.