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Pin No. Pin Name I/O Pin Description
87 SET KEY 2 I Set key input terminal (A/D input) (B, jog, END SEARCH keys input)
88 REC KEY I REC key input terminal
89 VRM MON I VREM voltage monitor input terminal (A/D input)
90 HIDC MON I HI-DC voltage monitor input terminal (A/D input)
91 AVSS — Ground terminal (for A/D converter)
92 AVREF I
Input terminal for power supply voltage adjustment reference voltage (+2.4 V)
(for A/D converter)
93 AVDD — Power supply terminal (+2.4 V) (for A/D converter)
94 TEST0 I Input terminal for the test (normally: fixed at “L”)
95 TEST1 I Input terminal for the test (normally: fixed at “L”)
96 TDI I Input terminal for JTAG Not used (open)
97 TMS I Input terminal for JTAG Not used (open)
98 TCX I Input terminal for JTAG Not used (open)
99 XTRST I Input terminal for JTAG Not used (open)
100 TDO I Input terminal for JTAG Not used (open)
101 TSB CLKCTL O TSB clock control signal output terminal
102 SSB DATA I/O Two-way SSB serial data bus with the SN761056ADBT (IC501)
103 SBSB CLK I SSB serial clock signal output to the SN761056ADBT (IC501)
104 FLASH WR EN — Not used (fixed at “H”)
105 VDD — Power supply terminal (+2.4 V)
106 VSS — Ground terminal
107 to 109 VLC1 to VLC3 — Power supply terminal for the liquid crystal display (+2.4 V)
110 XCS ADA O Chip select signal output to the A/D, D/A converter (IC301)
111 XPD ADA O Power supply control signal output to the A/D, D/A converter (IC301)
112 XRST MTR DRV O Reset signal output terminal “L”: reset Not used (open)
113 OPT DET I DIN plug detect signal input terminal
114 XJACK DET I LINE IN plug detect signal input terminal
115 XMIC DET I MIC plug detect signal input terminal
116 XOPT CONT O Power supply control signal output to the DIN plug laser diode
117 MUTE O Analog muting on/off control signal output terminal “L”: muting off, “H”: muting on
118 XHP STBY TMP O Power supply control signal output to the headphone amplifier Not used (open)
119 XCS NV O Chip select signal output to the EEPROM (IC802)
120 XINT REC SW O Not used (open)