Methods, memory devices, and systems are disclosed, such as those for accessing a memory circuit through the use of reduced external pins. The illumination source includes an array of LEDs. When the count value is M\xd7N or less and a code indicating a block boundary is detected, the decoding section starts a decoding process of the next block after ending an M\xd7N-th decoding process. Each electrode has an end face surrounded by the insulating portion and located at the side surface of the main body on which the wiring is disposed. The invention provides, further, improved methods and apparatus for workflow definition and processing which utilize workflow variables for communication of data and control information among tasks within a workflow. The second card holder is configured to receive a second SIM card, the second interface is removably electrically connected to the first interface, and the switch module is electrically connected to the second card holder, the second interface and the baseband chip so that the baseband chip is selectively electrically connected to the first card holder or the second card holder.