INTERFACE CIRCUIT OF FILE STORAGE DEVICE,申请号JP19840278032-传众专利搜索

INTERFACE CIRCUIT OF FILE STORAGE DEVICE

申请公布号：JPS61150025(A)

申请号：JP19840278032

申请日期：1984.12.25

申请公布日期：1986.07.08

申请人：

NEC CORP

发明人：KITAMURA YOSHITSUGU

分类号：G06F3/06;G11B20/10

主分类号：G06F3/06

摘要：PURPOSE:To attain communication between external devices connected to two sets of interface circuits by providing >=2 interface circuits having two-way performance and a reversible function. CONSTITUTION:When a file storage device, for example, is connected to an external controller 2 via an interface port circuit 60 for the communication, a control signal and data transmitted from the external controller 2 are given to a logic control circuit 30 and a buffer memory circuit 40 by the control of an interface port control circuit 39. Further, a status and data transmitted to the external controller 2 are given via a port 60 in a reverse route. Moreover, the communication route for both external controllers 2, 3 is formed by using a complete reversible function of the port circuit 60, 70.