| 摘要 |
PURPOSE:To realize compactly a cassette type magnetic tape recording device which can manage integrally analog voice information and digital information, by executing the designation of a recording and reproducing position conforming to an instruction from the outside and the recording and reproduction of an analog voice and a digital data, under a control of a microcomputer. CONSTITUTION:When sending out a command, an interruption occurs in a firmware of a one chip microcomputer 13 by sending out simultaneously a control signal COM, and a command interpreting routine is started. Also under a control of the microcomputer 13, a control code of a mechanism operating level conforming to the inputted command is latched by a latching circuit 29, and a part of its code is decoded by a decoder 30 and supplied to a CMT control LSI14, by which the CMT is brought to a drive control. Also, switching circuits 36-39 are brought to an on-control selectively by a part of the control code which has been outputted from the microcomputer 13, also, by a control signal outputted from the CMT control LSI14, sound-recording/ reproducing circuits 15, 16 of left and right channels are brought to an operation control, and recording/reproducing operations of a digital data or an analog voice are executed. |
