KD-S747
1-40 (No.49822)
4.11 UPD784215AGC2
2
4 (IC701) : CPU
• Pin Layout
• Pin function
1 ~ 25
75 ~ 51
76 ~ 100
50 ~ 26
Pin No.
Symbol
I/O
function
1~2
no use
O output L
3
SW2
I
CD mecha SW2
4
PSW
I
CD mecha Position Setting SW
5
LM
O loading motor control output
6
MOTOR SEL
O Loading/feed motor selecting output
7~8
no use
O output L
9
VDD
maicon power supply
10
X2
11
X1
12
VSS
-
GND
13
XT2
14
XT1
15
RESET
I
SYSTEM RESET
16
SW1
I
CD mecha sw1
17
no use
O output L
18
PS2
I
power save2, H means STOP mode
19~22
no use
O output L
23
AVDD
A/D converter power supply
24
AVREF0
A/D reference voltage
25
VOLÇP
I
volume encoder pulse input 1
26
VOLÇQ
I
volume encoder pulse input 2
27
KEY0
I
key input 0
28
KEY1
I
key input 1
29
KEY2
I
key input 2
30
LEVEL
I
level meter input
31
no use
I
Input
32
SM
I
S DMETER input
33
AVSS
-
GND
34~35
no use
O output L
36
AVREF
37~40
no use
O output L
41
LCD-DA
O data output for LCD driver
42
LCD-SCK
O CLK output for LCD driver
43
LCD-CE
O CE for LCD driver
44
no use
O output L
45
E2PROM-DI
I
I2C data input
46
E2PROM-DO
O I2C data output
