– 29 –
• IC105
µ
PD78P018F (PROGRAM, SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1 – 8
P30 – 37
—
Not used. (open)
9
V
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