Semiconductor Data - Kenwood TK-880 Service Manual

Microprocessor : 30622M8A-4F9GP (TX-RX Unit (B/2) IC511)
Terminal function
Pin No. Name I/O
1 LSDOUT O
2 HSDOUT O
3 HSDIN I
4 DTMSTD I
5 SELF I
6 BYTE I
7 CNVSS I
8 SFTOE O
9 LCDCS O
10 RESET I
11 XOUT –
12 VSS –
13 XIN –
14 VCC –
15 IGN I
16 AFTRD I
17 AFRTM I
18 MICDAT O
19 CP O
20 BEEP O
21 AFRDT I
22 AFREG1 O
23 AFREG2 O
24 EEPDAT O
25 EN O
26 AFCLR O
27 RXCOM2 I
28 TXCOM2 I/O
29 TXCOM1 O
30 RXCOM1 I
31 LD I
32 AFMSKE O
33 TXD O
34 HOOK I
35 AFDAT O

SEMICONDUCTOR DATA

Function
Low speed data output.
High speed data output.
High speed data input.
DTMF decode IC data detect input.
Self programming mode input.
+5V.
GND.
Shift register output enable.
LCD driver chip select output.
Microcomputer reset input.
9.8304MHz (System clock).
GND.
9.8304MHz (System clock).
+5V.
Ignition input.
MSK modulation data output timing
pulse input.
MSK demodulation data input tim-
ing pulse input.
MIC key data output.
PLL IC clock output.
Beep data output.
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.
External hook input / External serial
interface input.
External PTT input / External serial
interface output.
External serial interface output.
External serial interface input.
PLL unlock detect input.
MSK modulation enable.
(Enable active "H")
Serial interface output.
Hook input / Serial interface input.
MSK data output.
Pin No. Name I/O
36 RFCLK O
37 RDY –
38 ALE –
39 HOLD –
40 HLDA –
41 BLCK –
42 RD –
43 BHE –
44 WR –
45 DTMCLK O
46 CNTCLK O
47 EP O
48 CSO O
49 A19 –
50~59 A18~A9 –
60 VCC –
61 A8 –
62 VSS –
63~70 A7~A0 –
71~74 KEY1~KEY4 I/O
75 MINDAT O
76~78 KEY5~KEY7 I
79~86 D7~D0 –
87 DTMDAT I
88 AUXDTC I
89 MICBLC O
90 POWSW I
91 ANLSQL I
92 PTT I
93 RSSI I
94 AVSS –
95 LSDIN I
96 VREF –
97 AVCC –
98 ES1 O
99 ES2 O
100 AFSTB O
TK-880/H
Function
Common clock output. (TX-RX unit A/2)
Not used.
Not used.
Not used.
Not used.
Not used.
Flash memory RD bus.
Not used.
Flash memory WR bus.
DTMF decode IC clock output.
Common clock output. (TX-RX unit B/2)
PLL IC data strobe output.
Flash memory chip enable.
Not used.
Flash memory address bus.
+5V.
Flash memory address bus.
GND.
Flash memory address bus.
Key matrix data input/output 1~4.
Common data output.
Key matrix data input 5~7.
Flash memory data bus.
DTMF decode IC data input.
External DTC input.
MIC back light control output.
Power switch input.
Squelch level input.
PTT switch input.
Received signal strength indicator
input.
GND.
Low speed data input.
+5V.
+5V.
Shift register data strobe output.
(TX-RX unit B/2)
Shift register data strobe output.
(TX-RX unit A/2)
AF IC data strobe output.
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