31
TK-690H
(
B
)
SEMICONDUCTOR DATA
Pin No.
Pin name
I/O
Action
1
FCLR
O
Modem FCLR
2
CK
O
Common CLOCK
3
EM
O
D/A converter CS
4
MSKE
O
Modem MSKE
5
DIN
O
Modem DIN
6
EP
O
PLL LE
7
SCL
O
DTMF encoder CLOCK
8
SDT
O
DTMF encoder DATA
9
VDD
+5V
10,11
X2, X1
X’tal
12
VSS
GND
13
XT2
Open
14
XT1
GND
15
RESET
CPU reset
16
TEST
I
Serial interface TEST
17
TRD
I
Modem TRD
18
RTM
I
Modem RTM
19
STD
I
DTMF decoder STD
20
EC2
O
Shift register 2 (Control) CS
21
DT
O
Common DATA
22
ACK
O
DTMF decoder CLOCK
23
AVDD
+5V
24
AVREF0
+5V
25
TI
I
QT/DQT IN
26
RSI
I
RSSI IN
27
ASQ
I
Analog squelch IN
28
UL
I
PLL UNLOCK
29
SD
I
DTMF decoder SD
30
RDT
I
Modem RDT
31
RSV2
I
Reserved
32
IGN
I
Ignition IN
33
AVSS
GND
34
TO
O
QT/DQT OUT
35
CP
O
PLL CLOCK
36
AVREF1
+5V
37
RXD2
I
Acc RXD
38
TXD2
O
Acc TXD
39
ES
O
Shift register (TX/RX) CS
Microprocessor : 784214GCXXX8EU (Control Unit IC516)
• Terminal function
Pin No.
Pin name
I/O
Action
40
RXD1
I
Serial interface RXD
41
TXD1
O
Serial interface TXD
42
STB
O
Modem STB
43
EC1
O
Shift registerl (Control) CS
44
EI
O
Shift register (Interface) CS
45
SEL
I/O
GE-STAR I/O
46
EPT
I
GE-STAR EPT
47
EMG
O
GE-STAR EMG
48~71
Flash ROM access port
72
VSS
GND
73~74
Flash ROM access port
75
Flash ROM (4Mbit) access port
76
Not used.
77~78
Flash ROM access port
79
POF
O
Timed Power OFF.
80
Not used.
81
VDD
+5V
82
EN2
O
D/A converter (Interface) CS
83
CLK
O
EEPROM CLOCK
84
SDA
I/O
EEPROM DATA
85
RSV1
O
Reserved
86
AI1
I
Acc PF Input 1
87
AI2
I
Acc PF Input 2
88
AI4
I
Acc PF Input 4
89
AI3
I
Acc PF Input 3
90
AI5
I
Acc PF Input 5
91
2TN
I
2tone pulse IN
92
KEY
O
TX power SW
93
SQ
O
Acc SQ OUT
L : BUSY, H : Not BUSY
94
TEST
GND
95
AO1
O
Acc PF Output 1
96
AO2
O
Acc PF Output 2
97
AO3
O
Acc PF Output 3
98
AO4
O
Acc PF Output 4
99
1/2
I
Deck 1/2
L : Deck 1, H : Deck 2
100
SFT
O
Beat shift
