Patent ID: 7397274

Claim:
A programmable logic device comprising: a programmable fabric; a first interface compliant with a first standard and operable to receive configuration data for programming the fabric; a second interface compliant with a second standard and operable to receive and transmit configuration data for programming the fabric; and dedicated circuitry coupled to the first and second interfaces and operable to transfer configuration data received at the first interface in accordance with the first standard to the second interface for transmission therefrom in accordance with the second standard, the dedicated circuitry including: a multiplexer having a first input terminal coupled to the first interface, a second input terminal coupled to the programmable fabric, an output terminal coupled to the second interface, and a selection terminal coupled to receive a control signal from the first interface; and a demultiplexer having an input terminal coupled to the second interface, a first output terminal coupled to transmit signals to the first interface, a second output terminal coupled to the programmable fabric, and a selection terminal coupled to receive a control signal from the first interface.