Data output encoding device e.g. safety dongle, for use in mobile telephone, has bus encoding mechanism for selectively encoding digital signals output by processor, and peripheral interface for outputting selectively encoded signals

摘要

The device (100) has a processor (101), a peripheral interface (102) and a bus (103) coupled with the processor and the peripheral interface. A bus encoding mechanism (104) is coupled with the bus between the processor and the peripheral interface. The processor outputs digital signals on the bus. The bus encoding mechanism selectively encodes the digital signals output by the processor depending on an encoding signal (105) e.g. start signal and stop signal, assigned to the digital signals. The peripheral interface outputs the selectively encoded signals. The bus is an advanced microcontroller bus architecture (AMBA) bus, an advanced high-performance bus (AHB), an advanced extensible interface (AXI) bus or an advanced peripheral bus (APB). Independent claims are also included for the following: (1) a method for encoding data (2) a computer program comprising a set of instructions for performing a method for encoding data.