Semiconductor Data - Kenwood FM Transceiver TK-481 Service Manual

TK-480/481
Microprocessor : 30622M8A-4F9GP (TX-RX Unit IC15)
Pin function
Pin No. Port name I/O
1 LSDOUT O
2 HSDOUT O
3 HSDIN
4 DTMSTD
5 SELF
6 BYTE
7 CNVSS
8 SFTOE O
9 LCDCS O
10 RESET
11 XOUT
12 VSS
13 XIN
14 VCC
15 AUX
16 AFTRD
17 AFRTM
18 EN2
19 PLLCLK O
20 BEEP O
21 AFRDT
22 AFREG1 O
23 AFREG2 O
24 EEPDAT O
25 DACSTB O
26 AFCLR O
27 SAVE O
28 LAMP
29 AUXTXD O
30 AUXRXD
31 PLLUL
32 AFMSKE O
33 TXD O
34 RXD
35 AFDAT O
36 PTT
37 RDY
38 ALE
20

SEMICONDUCTOR DATA

Function
Low speed data output.
High speed data output.
I Not used.
I DTMF decode IC data detect input.
I Not used.
I +5V.
I GND.
Shift register output enable.
LCD driver chip select output.
I Microcomputer reset input.
- 9.8304MHz (System clock).
- GND.
- 9.8304MHz (System clock).
- +5V
I AUX switch input.
I MSK modulation data output timing
pulse input.
I MSK demodulation data input timing
pulse input.
I Encoder pulse input 2.
PLL IC clock output.
Beep data output.
I MSK demodulation data input.
AF IC register switching data output 1.
AF IC register switching data output 2.
EEPROM data output.
D/A converter IC data strobe output.
MSK flame reset output.
Not used.
I LAMP switch input.
External Serial interface output.
I External Serial interface input.
I PLL unlock detect input.
MSK modulation enable (Enable active "H").
Serial interface output (ex. PC).
I Serial interface input (ex. PC).
MSK data output.
I PTT switch input.
- Not used.
- Not used.
Pin No. Port name I/O
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.
47 PLLSTB O PLL IC data strobe output.
48 CS0 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 MONI I Monitor switch input.
72 EN4 I Not used.
73 EN3 I Not used.
74 EN1 I Encoder pulse input 1.
75 MINDAT O Common data output.
76 KEY2 I Key scan input 2.
77 KEY1 I Key scan input 1.
78 RESET O Key scan IC reset output..
79~86 D7~D0 - Flash memory data bus.
87 DTMDAT I DTMF decode IC data input.
88 PF I PF switch input.
89 VOL I Volume level input.
90 BATT I Battery voltage input.
91 ANLSQL I Squelch level input.
92 TEMP I Not used.
93 RSSI I Received signal strength indicator input
(RSSI).
94 AVSS - GND.
95 LSDIN I Low speed data input.
96 VREF - +5V
97 AVCC - +5V
98 SFTSTB1 O Shift register data strobe output.
99 W/N O Not used.
100 AFSTB O AF IC data strobe output.
Function