| 摘要 |
A PC card and a method of controlling the PC card is provided which can be used to add multiple capabilities to an information processing apparatus in cooperation with a conventional card only by the use of a single card slot. The PC card 1 is provided with a multifunctional adapter unit 2 which controls data exchange between the information processing apparatus 20 and the function of the PC card or data exchange between the information processing apparatus 20 and the function of the PHS card, and a PC card function control unit 3 which controls the function of the PC card. The multifunctional adapter unit 2 of the PC card 1 is provided with a communication control unit 2 a, an address control unit 2 b, a driving system setting unit 2 c, and an interrupt request control unit 2d. The address control unit 2 b controls address operations in order that the address area used by the PC card function control unit 3 shall not overlap the address area used by the PHS card function control unit 4 in the memory space which is accessed by the information processing apparatus 20 through the PC card 1.
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