Electronic device, unit using the same, and system

Details Electronic device, unit using the same, and system Electronic device, unit using the same, and system

2005-09-20

2005-09-20

Kim, Ahshik (Department: 2876)

Registers

Systems controlled by data bearing records

C235S13200R, C235S0610PD, C235S375000, C235S380000, C235S492000

Reexamination Certificate

active

06945452

ABSTRACT:
A main unit includes a file manager for inputting and outputting data files and an add-on driver for performing an extended function. The file manager and the add-on driver are connected to a first serial interface through respective protocol circuits. Input terminals of the first serial interface are connected to predetermined contacts of a connecting section, respectively. A power supply supplies power VCC and VSS to predetermined contacts in the connecting section. Data is exchanged with a register and a page buffer through a second serial interface provided in an electronic device. A read area at an arbitrary address in the register is used as an area in which a current value is written. A write area at the same address is used as an area in which a control signal is written. For example, a current suppliability bit and a function enabled bit are provided.

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