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• IC105 µPD78P018F (PROGRAM, SYSTEM CONTROL)
Pin No. Pin Name I/O Pin Description
1 – 8 P30 – 37 — Not used. (open)
9V
SS
— Ground
10 P40 I POWER ON/OFF key signal input L: ON
11 P41 I INPUT key signal input L: ON
12 P42 I OUTPUT key signal input L: ON
13 P43 I EFFECT key signal input L: ON
14 P44 I DEMO key signal input L: ON
15 P45 — Not used. (open)
16 P46 I/O Test pin Not used. (open)
17 P47 — Not used. (open)
18 P50 O LED EN signal output
19 P51 O LED LAT signal output
20 P52 O LED reset signal output
21, 22 P53, 54 — Not used. (open)
23 P55 O POWER LED signal output Not used. (open)
24 V
SS
— Ground
25 P56 — Not used. (open)
26 P57 O IF circuit power supply control signal output L: OFF, H: ON
27 – 30 P60 – 63 — Not used. (open)
31 P64 O DSP GPIO0 (VR ON/OFF) signal output H: OFF, H: ON
32 P65 O DSP GPIO1 (data change) signal output Not used. (open)
33 P66 I DSP GPIO2 (audio input zero flag) signal input L: ON
34 P67 O DSP GPIO3 (REAR through) signal output H: REAR through, L: Normal
35 RESET I System reset signal input
36 P00 — Ground
37 P01 I Decoder source type change flag signal input H: Pulse
38, 39 P03, 04 — Not used. (open)
40 V
DD
— Power supply pin (+5 V)
41 X2 I Connect to crystal for main system clock oscillator.
42 X1 I Connect to crystal for main system clock oscillator.
43 IC — Connect to internal. (Connect to AVSS.)
44 XT2 — Not used. (open)
45 XT1 — Not used. (Connect to VDD.)
46 AV
SS
— Ground (Ground potential of A/D converter.)
47 P10 O Serial select signal output L: ON
48 P11 O Decoder serial select signal output L: ON
49 P12 O SLAVE reset signal output L: ON
50 P13 O De-emphasis control 0 signal output
51 P14 O De-emphasis control 1 signal output
52 P15 O Peripheral set power supply control signal output L: OFF, H: ON
53 P16 O Mute ON/OFF signal output L: OFF, H: ON
54 P17 O DSP reset signal output L: ON
55 AV
DD
— Power supply pin (+5 V) (Analog power supply of A/D converter.)
56 AV
REF
— Ground
57 P20 (SI1) I Main serial data signal input
58 P21 (SO1) O Main serial data signal output
59 P22 (SCK1) O Main serial clock signal output
60 P23 O Not used. (open)
61 P24 (BUSY) I Main serial busy signal input
62 P25 I Not used. (open)
63 P26 O LED serial data signal output
64 P27 O LED serial clock signal output
5-10. IC PIN DESCRIPTIONS
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