20
TK-785
SEMICONDUCTOR DATA
■
Terminal function
Pin No.
Name
I/O
Function
1
LSDOUT
O
Low speed data output.
2
HSDOUT
O
High speed data output.
3
HSDIN
I
High speed data input.
4
DTMSTD
I
DTMF decode IC data detect input.
5
SELF
I
No function.
6
BYTE
I
+5V.
7
CNVSS
I
GND.
8
SFTOE
O
Shift register output enable.
9
LCDCS
O
LCD driver chip select output.
10
RESET
I
Microcomputer reset input.
11
XOUT
–
9.8304MHz (System clock).
12
VSS
–
GND.
13
XIN
–
9.8304MHz (System clock).
14
VCC
–
+5V.
15
IGN
I
Ignition input.
16
AFTRD
I
FFSK modulation data output timing
pulse input.
17
AFRTM
I
FFSK demodulation data input tim-
ing pulse input.
18
MICDAT
O
MIC key data output.
19
CP
O
PLL IC clock output.
20
BEEP
O
Beep data output.
21
AFRDT
I
FFSK demodulation data input.
22
AFREG1
O
AF IC register switching data output 1.
23
AFREG2
O
AF IC register switching data output 2.
24
EEPDAT
O
EEPROM data output.
25
EN
O
D/A converter IC data strobe output.
26
AFCLR
O
FFSK flame reset output.
27
RXCOM2
I
External hook input / External serial
interface input.
28
TXCOM2
I/O
External PTT input / External serial
interface output.
29
TXCOM1
O
External serial interface output.
30
RXCOM1
I
External serial interface input.
31
LD
I
PLL unlock detect input.
32
AFMSKE
O
FFSK modulation enable.
(Enable active "H")
33
TXD
O
Serial interface output.
34
HOOK
I
Hook input / Serial interface input.
35
AFDAT
O
FFSK data output.
Microprocessor : 30620M8-394GP (TX-RX Unit IC511)
Pin No.
Name
I/O
Function
36
RFCLK
O
Common clock output. (TX-RX unit)
37
RDY
–
Not used.
38
ALE
–
Not used.
39
HOLD
–
Not used.
40
HLDA
–
Not used.
41
BLCK
–
Not used.
42
RD
–
Flash memory RD bus.
43
BHE
–
Not used.
44
WR
–
Flash memory WR bus.
45
DTMCLK
O
DTMF decode IC clock output.
46
CNTCLK
O
Common clock output. (Control unit)
47
EP
O
PLL IC data strobe output.
48
CSO
O
Flash memory chip enable.
49
A19
–
Not used.
50~59
A18~A9
–
Flash memory address bus.
60
VCC
–
+5V.
61
A8
–
Flash memory address bus.
62
VSS
–
GND.
63~70
A7~A0
–
Flash memory address bus.
71~74
KEY1~KEY4
I/O
Key matrix data input/output 1~4.
75
MINDAT
O
Common data output.
76~78
KEY5~KEY7
I
Key matrix data input 5~7.
79~86
D7~D0
–
Flash memory data bus.
87
DTMDAT
I
DTMF decode IC data input.
88
AUXDTC
I
External DTC input.
89
MICBLC
O
MIC back light control output.
90
POWSW
I
Power switch input.
91
ANLSQL
I
Squelch level input.
92
PTT
I
PTT switch input.
93
RSSI
I
Received signal strength indicator
input.
94
AVSS
–
GND.
95
LSDIN
I
Low speed data input.
96
VREF
–
+5V.
97
AVCC
–
+5V.
98
ES1
O
Shift register data strobe output.
(Control unit)
99
ES2
O
Shift register data strobe output.
(TX-RX unit)
100
AFSTB
O
AF IC data strobe output.
