Semiconductor Data - Kenwood TK-80 Service Manual

Microprocessor: 37702E8LHJMHF (Control unit IC5)
Pin No. Pin Name Port Name I/O
1 FSL
2 PSC
3 BKC
4 BOVR
5 PSW
6 CK1
7 CK2
8 MU
9 SPED
10 MD
11 SIDE
12 PDA
13 BZ
14 LDA
15 LCK
16 ULK
17 TOE
18 STD
19 PCK
20 SO
21 LBLK
22 TXC
23 RXC
24 BYTE
25 CNVss
26 RESET
27 XIN
28 XOUT
29 E
30 Vss
31 CKY
32 MCS
33 MDI
34 UCK
35 UDA
36 CASL
37 NC
38 A1
39 A0
40 IOS
Downloaded from www.Manualslib.com

SEMICONDUCTOR DATA

P66 I Selective call lock detect input. H: Detect, L: Normal
P65 O Power relay control. H: ON, L: OFF
INT2 I Reduced voltage input. H: Normal, L: Reduced voltage, Rise pulse: Power supply turned on
INT1 I Excess voltage input. H: Normal, L: Excess voltage
INT0 I Power SW input. H: Input, L: No input
TA4in I Encoder input 1
TA4out I Encoder input 2
P56 I Microphone UP key input. H: No input, L: Input
TA3out O AT motor drive control. H: Go, L: Stop
P55 I Microphone DWN key input. H: No input, L: Input
TA2out O Sidetone (timer output)
P53 O PLL serial data, EEPROM serial data, diode matrix selection
TA1out O System beep (timer output)
P51 O LCD driver serial data
P50 O LCD driver serial clock
P47 I PLL lock decision. H: Lock, L: Unlock
P46 O DTMF IC bus control. H: Enable, L: HighZ
I Selective call unit attachment decision. H: Not attached, L: Attached
P45 I DTMF input decision. H: Input, L: No input
P44 O For PLL/DDS, serial clock
P43 O Key matrix selection. H (HighZ): Normal, L: Select
P42 O LCD all illuminate. H: All illuminate, L: Normal
P41 O Transmission control. H: TX, L: Non-TX
P40 O Receiver control. H: RX, L: Non-RX
BYTE I (External bus width designated)
CNVss I CPU actuation mode designated
RESET I CPU reset
XIN I System clock
XOUT O System clock
E O Not used
Vss - GND
P33 O Transmission control CKY output. H: Transmission (carrier output), L: Reception
P32 O EEPROM CS. H: CS
P31 I EEPROM data read
P30 O Common serial clock
P27 O Common serial data
P26 O Carrier DDS register selection. H: Register B, L: Register A
P25 I Not used
P24 O Expansion I/O address
P23 O Expansion I/O address
P22 O Expansion I/O CS signal, H: Normal, L: CS
manuals search engine
Description
TK-80
21