Kenwood TS-950S Service Manual

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+ Terminal functionTS-950S/SDSEMICONDUCTOR DATAPin No. | Pin name Name VO : FunctionTad ' P30~P37 Port 3 yo Eight-bit general-purpose input/output port. These terminals are included in group 2.77~80 i all bits Three operation modes can be selected by setting the contro! parameter by software.5 Ww | Write I The control parameter and port output data item can be written using a low-level signal.The parameter and port data can be distinguished and selected using the C51, CS2,RSLCTO, and RSLCT1 signals.6 RST Initial setting 1 Input terminal. The MB89363B is set to the initial mode using a reset signal, and initialreset value 9B {hexadecimal} is automatically set for two control parameters. The initial modej indicates that all ports are in the input state of mode 0. All port terminals stay high in theinitial mode. The active signal level is selected using an RH/AL signal.RH/AL = 0 : RST {active low) RH/RL = 1: RST (active high)9 RH/RL Reset active | | The RST terminal is set to active high or active lowi level selection { RH/RL = 0: RST (active low} RH/RL = 1 : RST {active high)! i The RH/AL terminal is fixed at either Vec ot GND at all times.W OUS/INS l Port 0 and 3 | | This terminal indicates the output state of ports 0 and 3. It also selects whether the+ read value external terminal value of ports 0 and 3 is read directly or whether the output latch valueselection i of ports0 and 3 is read directly when reading the value of ports 0 and 3.i OUS/INS = 0: The output latch value of ports 0 and 3 is read. {! | OUS/INS = 1: The external terminal value of ports 0 and 3 is read.12-19 DBO~DB7 | Bidirectional VO i Eight-bit, bidirectional data bus. These terminals are used for data communication with the! data bus | MPU. The bus signal making and breaking and data direction are controlled using the csi,i ! CS2, R and W signals.20~23 | POO~PO7 Port 0 OQ: Eight-bit, general-purpose input/output port. These terminals are included in group 0.25~28 all bits i Three operation modes can be selected by setting the control parameter by software.29 CS1 Device | | When a low-level signal is input to this terminal, signals DBO through 087 are released and75 CS2 | selection data communication with the MPU takes place. At that time, the control parameter iswritten, and data is written into or read from each port. CS1=0:/01 CS2=0:/02Simultaneous selection of CS1 = 0 and CS2 = 0 is inhibited.30, 74 GND Ground terminal | |_| OV.31 | RSLCTO Access | | When data is sent to the MPU, the parameter and port are distinguished and selected32 RSLCT1 selection i using the CS1, CS2, RSLCTO, and RSLCT1 signals.34~40 P20~P27 } Port2 //O | These terminals are used as a general-purpose input/output port, handshaking control43 | all bits terminals, and status data bit inputfoutout terminals in accordance with the operationfunctions and modes of groups 0 and 1.44-51 P10~P17 | Port1 ie) Eight-bit, generai-purpose input/output port. These terminals are included in group 1.all bits | Two operation modes can be selected by setting the control parameter by software.53 Vee +5V power.54~61 P40~P47 Port 4 VO | Eight-bit, general-purpose input/output port. These terminais are included in group 3.all bits i Two operation modes can be selected by setting the control parameter by software.62 P50-P57 Port 5 1 VO | These terminals are used as a general-purpose input/output port, handshaking control65-71 all bits terminals, and status data bit input/output terminals.76 R Read | Data from each port is read using a low-level signal.The port type is selected using the CS1, CS2, RSLCTO, and RSLCT1 signals.7,8,10,24 NC - ~ | Connection to the NC terminal is inhibited.33,41,4252,63,6472,73FOR SERVICE MANUALSCONTACT:MAURITRON TECHNICAL SERVICESwww. mauritron.co.ukTEL: 01844 - 351694FAX: 01844 - 35255489