33
CX-LEM550
Pin No. Pin Name I/O Description
73 TU CE O Chip enable signal output to the FM/AM tuner unit
74 TU CLOCK O Serial data transfer clock signal output to the FM/AM tuner unit
75 TU DI I Serial data input from the FM/AM tuner unit
76 TU DO O Serial data output to the FM/AM tuner unit
77 TU MUTE O Tuner muting on/off control signal output to the FM/AM tuner unit
78 TA MO O Capstan/reel motor on/off control signal output terminal “H”: motor on
79 TA RP O
Recording/playback selection signal output terminal
“H”: playback mode, “L”: recording mode
80 TA BIAS O Recording bias on/off selection signal output terminal “H”: bias on, “L”: bias off
81 TA SOL O Trigger plunger on/off control signal output terminal “H”: plunger on
82 AMP-STBY O Standby control signal output to the power amplifier
83 AMP MUTE O Tuner muting on/off control signal output to the power amplifier
84 AU MUTE O Line muting on/off control signal output terminal
85 POWER ON O Power relay drive signal output terminal “H”: on
86 NC — Not used
87 ST-BY LED O LED drive signal output terminal
88 DSG/I-BASS LED O LED drive signal output terminal
89 VSS2 — Ground terminal
90 VDD2 — Power supply terminal (+3.1V)
91 CD LED — Not used
92 TU LED — Not used
93 TA LED — Not used
94 MD CD ON LED O Power on/off control signal output for the CD mechanism section
95 CD DATA O Serial data output to the CD DSP
96 SENS I Internal status (SENSE) signal input from the CD DSP
97 CD-CLK O Serial data transfer clock signal output to the CD DSP
98 MI-DIO-O O Serial data output to the MP3 decoder
99 MI-DIO-I I Serial data input from the MP3 decoder
100 MI-CK O Serial data transfer clock signal output to the MP3 decoder