Sony SPP-930, Руководство по обслуживанию

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Pin No. Pin name I/O Description
66 DVDD3 – Power supply terminal for digital (+5V).
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67 INT I Maskable interrupt input terminal.
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68 NMI I NON-Maskable interrupt input terminal (+5V).
69 COL1 I Key scan input terminal.
70 COL0 I Key scan input terminal.
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71 WAIT I Wait setting input terminal.
72 AVSS1 – Power supply terminal for analog (Ground).
73 AVDD1 – Power supply terminal for analog (+5V).
74 ADI I Analog data input terminal.
75 TO O Microphone amplifier output.
76 TI – I Microphone amplifier input (– side).
77 TI + I Microphone amplifier input (+ side).
78 VREF – Reference voltage for analog.
79 SPO1 – O Speaker amplifier output (– side). (Not used)
80 SPO1 + O Speaker amplifier output (+ side).
81 SPI1 I Speaker amplifier input 1.
82 DAO O D/A converter output (Not used).
83 SPO2 – O Speaker amplifier output 2 (– side). (Not used)
84 SPO2 + O Speaker amplifier output 2 (+ side).
85 AVSS2 – Power supply terminal for analog (Ground).
86 AVDD2 – Power supply terminal for analog (+5V).
87 – 89 MODE0 – MODE2 I Operation mode setting input terminal (“L” level).
90 DVSS4 – Power supply terminal for digital (Ground).
91 DVDD4 – Power supply terminal for digital (+5V).
92 MODE3 I Operation mode setting input terminal (“L” level).
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93 STBY I Input terminal for stand-by signal.
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94 RST I System reset terminal.
95 – 100 D7 – D2 I/O Serial data bus.