Semiconductor Data - Kenwood TK-80 Service Manual

Microprocessor: 37702E8LHJMHF (Control unit IC5)
Pin No. Pin Name Port Name I/O
1 FSL P66
2 PSC P65
3 BKC INT2
4 BOVR INT1
5 PSW INT0
6 CK1 TA4in
7 CK2 TA4out
8 MU P56
9 SPED TA3out
10 MD P55
11 SIDE TA2out
12 PDA P53
13 BZ TA1out
14 LDA P51
15 LCK P50
16 ULK P47
17 TOE P46
18 STD P45
19 PCK P44
20 SO P43
21 LBLK P42
22 TXC P41
23 RXC P40
24 BYTE BYTE
25 CNVss CNVss
26 RESET RESET
27 XIN XIN
28 XOUT XOUT
29 E E
30 Vss Vss
31 CKY P33
32 MCS P32
33 MDI P31
34 UCK P30
35 UDA P27
36 CASL P26
37 NC P25
38 A1 P24
39 A0 P23
40 IOS P22

SEMICONDUCTOR DATA

I Selective call lock detect input. H: Detect, L: Normal
O Power relay control. H: ON, L: OFF
I Reduced voltage input. H: Normal, L: Reduced voltage, Rise pulse: Power supply turned on
I Excess voltage input. H: Normal, L: Excess voltage
I Power SW input. H: Input, L: No input
I Encoder input 1
I Encoder input 2
I Microphone UP key input. H: No input, L: Input
O AT motor drive control. H: Go, L: Stop
I Microphone DWN key input. H: No input, L: Input
O Sidetone (timer output)
O PLL serial data, EEPROM serial data, diode matrix selection
O System beep (timer output)
O LCD driver serial data
O LCD driver serial clock
I PLL lock decision. H: Lock, L: Unlock
O DTMF IC bus control. H: Enable, L: HighZ
I Selective call unit attachment decision. H: Not attached, L: Attached
I DTMF input decision. H: Input, L: No input
O For PLL/DDS, serial clock
O Key matrix selection. H (HighZ): Normal, L: Select
O LCD all illuminate. H: All illuminate, L: Normal
O Transmission control. H: TX, L: Non-TX
O Receiver control. H: RX, L: Non-RX
I (External bus width designated)
I CPU actuation mode designated
I CPU reset
I System clock
O System clock
O Not used
- GND
O Transmission control CKY output. H: Transmission (carrier output), L: Reception
O EEPROM CS. H: CS
I EEPROM data read
O Common serial clock
O Common serial data
O Carrier DDS register selection. H: Register B, L: Register A
I Not used
O Expansion I/O address
O Expansion I/O address
O Expansion I/O CS signal, H: Normal, L: CS
Description
TK-80
21