3
RC-2000
SEMICONDUCTOR DATA
CPU : 30622M8759GP (Display Unit IC4)
Pin No.
Port name
I/O
Function
Active
level
1
KYCALL
I
[AT] key input
L
2
KYVFO
I
[Q. IN] key input
L
3
KYMR
I
[EASY] key input
L
4
KYPM
I
[PM] key input
L
5
KYMNU
I
[RIT] key input
L
6
BYTE
I
Select 8-bit data bus (5C)
7
CNVSS
I
Select memory expansion mode
8
FUNC
I
[F1] key input
L
9
KYF1
I
[F2] key input
L
10
RESET
I
Reset
11
XOUT
O
Clock output
12
VSS
-
GND
13
XIN
I
Clock input
14
VCC
-
Power input
15
NMI
(I)
Not used
16
INT2
I
Interrupt from serial input port
17
INT1
I
Encoder pulse 1 input
18
INT0
I
Encoder pulse 2 input
19
KYF2
I
[F3] key input
L
20
KYF3
I
[F4] key input
L
21
NC
I
Not used (VCC)
22
NC
I
Not used (VCC)
23~26
DIM3~0
O
Dimmer output
27
PSW
O
Power SW control output
28
BS
O
Beat shift output
29
NC
I
Not used (VCC)
30
NC
I
Not used (VCC)
31
KYF4
I
[F5] key input
L
32
KYF5
I
[F6] key input
L
33
TXD0
O
Serial port for connecting to
TX-RX uint
34
RXD0
I
Serial port for connecting to
TX-RX uint
Pin No.
Port name
I/O
Function
Active
level
35
NC
I
Not used (VCC)
36
NC
I
Not used (VCC)
37~41
NC
I
Not used
42
RD
-
Read signal
43
NC
-
Not used
44
WR
-
Write signal
45
LCDA0
O
LCD address 0
46
LCDCD2
O
LCD chip select 2
47
LCDCD1
O
LCD chip select 1
48
CS0
-
Flash ROM chip select signal
49
A19
-
Not used (Open)
50~59
A18~9
-
Address bus 18~9
60
VCC
-
Power input
61
A8
-
Address bus 8
62
VSS
-
GND
63~70
A7~0
-
Address bus 7~0
71~78
LCDD7~0
I/O
LCD data bus 7~0
79~86
D7~0
-
Data bus 7~0
87
LCDRD
O
LCD read terminal
88
LCDWR
O
LCD write terminal
89
LCDRES
O
LCD reset
90
POWER
I
[ ] key input
L
(key interrupt)
91
B-AFVR
I
Sub band R AF VOL (A/D)
92
B-SQVR
I
Sub band R SQ VOL (A/D)
93
A-AFVR
I
Main band L AF VOL (A/D)
94
AVSS
-
Analog power input (GND)
95
A-SQVR
I
Main band L SQ VOL (A/D)
96
VREF
-
A/D reference voltage input
97
AVCC
-
Analog power input (5C)
98
MHz
I
[TUNING CONTROL] key input
L
99
B_KEY
I
[SUB AF CONTROL] key input
L
100
A_KEY
I
[MAIN AF CONTROL] key input
L
