Patent ID: 7623894

Claim:
Integrated circuitry comprising: a cellular modem processor which executes instructions from an instruction set; and at least one memory coupled to the cellular modem processor, the at least one memory storing instructions, the instructions including instructions that when executed by the cellular modem processor perform a layer 1 processor operation of a cellular communication protocol by the cellular modem processor, instructions that when executed by the cellular modem processor perform a layer 2 processor operation of the cellular communication protocol by the cellular modem processor, and instructions that when executed by the cellular modem processor perform a layer 3 processor operation of the cellular communication protocol by the cellular modem processor; a second processor, wherein the cellular modem processor and the second processor are implemented on a single integrated circuit; at least one shared memory accessible by both the cellular modem processor and the second processor, wherein the at least one shared memory is divided into at least two regions, a first region of the at least two regions is accessible only by the cellular modem processor, and a second region of the at least two regions is accessible by both the cellular modem processor and the second processor.