System and method for remotely executing code

摘要

There is disclosed a computer system comprising a microprocessor on a single integrated circuit chip connected to an external computer device. The chip has a CPU and a communication bus providing a parallel communication path between the CPU and the first local memory. The chip further comprises an external communication port connected to the bus, the external computer device being connected to an external communication port and having a second memory. The port has an internal connection of an internal parallel signal format and an external parallel signal format and an external connection of an external format less parallel than the internal format. The second memory is accessible by the CPU through the port, the port forming part of the memory address space of the CPU from which instructions may be fetched. The port may be addressed by execution of an instruction by said CPU. There is also discloses a method of operating such a computer system.