1. Microprocessor : MC-8800-802 (TX-RX Unit IC406)
1-1. Terminal function
Pin No.
Port name
I/O
1~4
A7~A4
I
5~7
AD5~AD3
I/O
8~11
A3~A0
I
12
Vcc
–
13
OE
I
14
VSS
I
15~18
CH A~CH D
I
19
TGL
I
20
LE
O
21
DATA
O
22
CLOCK
O
23
VOL
I
24
PF
I
25
TEMP
I
26
LSDIN
I
27
BATT
I
28
UL
I
29
GND
–
30
MDATA
O
31
EXSP
I
32
AVDD
–
33
AVREF1
–
34
AVSS
–
35
LSDOUT
O
36
HSDOUT
O
37
AVREF2
–
38
AVREF3
–
39
SELF
I
40
INTP0
I
41
STD
I
42
BUSY
I
43
2TONE
I
44
TRD
I
45
RTM
I
46
SD
I
47
RXD
I
48
TXD
O
SEMICONDUCTOR DATA
Function
NC : Flash memory address bus
NC : Flash memory address and data bus
NC : Flash memory address bus
+5V.
GND : Address latch output enable
GND : Test port
Rotary SW 1~4
Toggle switch input
PLL enable
Common data
Common clock
Volume level input
SP key 1/2
TEMP
Low speed data input (QT/DQT)
Battery voltage input
PLL unlock detect input
GND
Modem data input
EXT SP Connect : L, Non connect : H
+5V
+5V
GND
Low speed data output (QT/DQT)
High speed data output (DTMF/Beep)
+5V
GND
Self programming enable/disable
H : Enable, L : Disable
µ-com stop
DTMF decoder STD
Noise pulse input
2 tone data input
MSK modulation data output timing
pulse input
MSK demodulation data input timing
pluse input
DTMF decoder SD
Serial interface input
Serial interface output
Pin No.
Port name
I/O
49
DCK
O
DTMF clock
50
SCL
O
EEPROM clock
51
GND
–
GND
52
SDA
I/O
EEPROM data
53
LD
O
DA converter LD
54
MSTB
O
MSK modulation strobe
55
MSKE
O
MSK modulation enable
56
RESET
I
µ-com reset Active : L
57,58
X2, X1
–
14.754MHz (System clock)
59
FCLR
O
MSK flame reset output
60
RDT
I
MSK demodulation data input
61,62
STB2, STB1
O
Shift register strobe 2, 1
63
SOE
O
Shift register output enable
64
PTT
I
PTT key input
65
LCDCS
O
LCD driver chip select output
66,67
KEY2, KEY1
I
Key counter return 2, 1
68
LCDDO
I
Radio kill data input for optional board
69
KCK
O
Key counter clock output
70
KRST
O
Key counter reset output
71
A10
I/O
NC : Not used
72
RD
O
Flash ROM read bus
73
OE
I
Flash ROM output enable
74
A17
I/O
Flash memory address and data bus
75
CE
I
Flash memory chip enable
76
A11
I/O
NC
77
A14
I/O
NC
78,79
–
–
NC : Not used
80
GND
–
GND
81,82
A9, A8
I/O
NC
83,84
A13, A14
I/O
NC
85
WR
O
Flash ROM write bus
86
Vcc
–
+5V
87,88
A16, A15
I/O
A16, A15
89,90
A16, A15
I
A16, A15 : Flash memory address bus
91
A12
I/O
NC
92
NC
–
NC : Not used
93~95
AD2~AD0
I/O
NC
96,97
AD7, AD6
I/O
NC
98,99
GND
–
GND
100
ASTB
I/O
NC : Flash memory address strobe
TK-290
Function
23