Semiconductor Data - Kenwood TK-P721 Service Manual

MCU: F363BEDFEKDLE (TX-RX unit IC820)
Pin No. Signal Name I/O
1 BSHIFT O
2 LSDO O
3 HSDENC O
4 EN1 I
5 EN2 I
6 MODE I
7 NC -
8 PL_CLK O
9 RESET -
10 XOUT -
11 VSS -
12 XIN -
13 VCC -
14 EMPTT O
15 EN2 I
16 CM_IRQ I
17 INT0 I
18 PL_UL I
19 PTT I
20 PL_STB O
21 PL_DAT O
22 NC
23 33MSC O
24 TXD O
25 RXD I
26 EM_CLK O
27 APCSW O
28 TX/RX O
29 50VC O
30 5TC O
31 EP_DTO O
32 EP_CLK O
33 CM_DTO O
34 EMP O
35 5RC O
36 EP_WP O
37 EP_DTI I
38 EP_CS O
39 CE O
40 CM_CLK O

SEMICONDUCTOR DATA

Function
CPU clock frequency shift
QT/DQT output
2-Tone/BEEP output
Encoder detect for direction
Pull up for P8_4 (EN2)
(Using E8a emulator)
NC
PLL IC clock output
Hardware reset input
NC
GND
Main clock input (19.2MHz)
3.3V
Emergency PTT
Encoder interrupt
Baseband IC IRQ
Battery low interrupt (4.5V)
PLL IC unlock input
PTT input
PLL IC STB output
PLL IC data output
NC
33MS control for switched 33M
Serial data (FPU) to PC
Serial data (FPU) from PC
For E8a emulator
APC enable/disable
TX/RX switch H: TX, L: RX
5V AVR control for GPS MIC op-
tion/OPT DET
5T control output
EEPROM IC data output
EEPROM IC clock output
Baseband IC data output
For FDT tool
5R control output
EEPROM IC write protect output
EEPROM IC data input
EEPROM IC chip select output
For FDT tool
Baseband IC clock output
Pin No. Signal Name I/O
41 CM_DTI I
42 CM_CNS O
43 DC_SW O
44 KEY1O O
45 KEY2O O
46 KEY3O O
47 KEY4O O
48 KEY1I I
49 KEY2I I
50 KEY3I I
51 KEY4I I
52 PF1 l
53 PF2 l
54 LCDBL O
55 LC_INH O
56 LC_CLK O
57 LC_DAT O
58 LC_CE O
59 LC_MOD O
60 HSDDEC I
61 QT/DQT I
62 CVIN I
63 BATT I
64 VOX I
65 BUSY I
66 TH_DET I
67 RSSI I
68 WID/NAR O
69 ASSIST O
70 AF_MUT O
71 MIC_MT O
72 MAN_DN I
73 5CC O
74 LEDBLU O
75 AVSS -
76 LEDGRN O
77 VREF -
78 AVCC -
79 LEDRED O
80 OPTDET I
TK-P721
Function
Baseband IC data input
Baseband IC chip select output
APC voltage discharge switch
Key matrix output 1
Key matrix output 2
Key matrix output 3
Key matrix output 4
Key matrix input 1
Key matrix input 2
Key matrix input 3
Key matrix input 4
Side key 1 input
Side key 2 input
LCD backlight switch
L: ON, H: OFF
LCD diver IC INH output
LCD diver IC clock output
LCD diver IC date output
LCD diver IC chip enble output
LCD diver IC mode output
2-Tone/5-Tone decode input
QT/DQT decode input
VCO lock voltage reading for
auto alignment
Battery level input
VOX level input
RX busy input
Temperature level input
RSSI input
Wide Narrow switch
H: WID, L: NAR
Assist switch
Speaker mute output
Mic mute output
MAN down
5C control output
Blue LED light control
GND
Green LED light control
3.3V for A/D reference
3.3V
Red LED light control
Option detection input
17