Alinco DR-235 Service Manual page 15

No. Pin Name
1 P67/AN7
2 P66/AN6
3 P65/AN5
4 P64/AN4
5 P63/SCLK22/AN3
6 P62/SCLK21/AN2
7 P61/SOUT2/AN1 DCSW
8 P60/SIN2/AN0
9 P57/ADT/DA2
10 P56/DA1
11 P55/CNTR1
12 P54/CNTR0
13 P53/RTP1
14 P52/RTP0
15 P51/PWM3
16 P50/PWM
17 P47/SROY1
18 P46/SCLK1
19 P45/TXD
20 P44/RXD
21 P43/ /TOUT
22 P42I/NT2
23 P41/INT1
24 P40
25 P77
26 P7
27 P75
28 P74
29 P73
30 P72
31 P71
32 P70/INTO
33 RESET
34 Xcin
35 Xcout
36 Xin
37 Xout
38 Vss
39 P27
40 P26
41 P25
42 P24
43 P23
44 P22
45 P21
46 P20
47 P17
48 P16
49 P15/SEG39
50 P14/SEG38
51 P13/SEG37
52 P12/SEG36
53 P11/SEG35
54 P10/SEG34
55 P07/SEG33
Function I/O PU
SMT I -
SQL I -
BAT I -
TIN I -
BP1 I -
BP2 I -
O -
RE2 I -
TOUT O -
DOUT O -
SCL O -
TBST O -
BP4 I -
MUTE I/O -
CLK O -
DATA I/O -
TSTB I/O - Activ low/Pulse
STB O -
UTX O -
RTX I -
BEEP I/O - Pulse/Activ low Beep tone/Band plan 3
SEC I -
RE1 I -
DSQ I -
PTT I -
SSTB O - Pulse/Activ low Strobe signal to scramble IC/Security mode
W/N O -
T5 O -
R5 O -
SQC O -
C/S O -
BU I -
RESET I -
Xcin - -
Xcout - -
Xin - -
Xout - -
GND - -
PSW I -
SDA O -
C5C O -
AIR O -
LOW O -
EXP O -
SW6 I
SW5 I
SW4 I
SW3 I
SW2 I
SW1 I
DOWN I
DUD I -
SCR I
UP I
S33 O -
Logic
A/D S-meter input
A/D Noise level input for squelch
A/D Battery voltage input
A/D CTCSS tone input/DSC code input
A/D Band plan 1
A/D Band plan 2
Activ high DCS signal mute
Activ low Rotary encoder input
D/A CTCSS tone output/DCS tone output
D/A DTMF output
Pulse Serial clock for EEPROM
Pulse Tone burst output
- Band plan 4
Activ low Microphone mute/Security alarm SW
Pulse Serial clock output for PLL,scramble
Pulse
Serial data output for PLL scramble/PLL unlock signal input
Trunking board detection / Strobe signal to trunking board
Pulse Strobe for PLL IC
Pulse UART data transmission output
Pulse UART data reception output
Activ high Security voltage input
Activ low Rotary encoder input
Activ high Digital squelch input
Activ low PTT input
Activ low Wide Narrow SW
Activ low TX power ON/OFF output
Activ high RX power ON/OFF output
Activ low SQL ON/OFF
Activ low Digital scramble ON/OFF
Activ low Backup signal detection input
Activ low Reset input
- -
- -
- Main clock input
- Main clock output
- CPU GND
Avtiv low Power switch input
Pulse Serial data for EEPROM
Activ high C5V power ON/OFF output
Activ high Air band SW / Tx middle power
Activ high Tx low power
Activ high Trunking data SW
Activ low Key sw6 (SQL)
Activ low Key sw5 (CALL)
Activ low Key sw4 (TSQ)
Activ low Key sw3 (MHz)
Activ low Key sw2 (V/M)
Activ low Key sw1 (FUNC)
Activ low Mic down input
- Digital unit detect
Active low Scramble IC ready signal/Packet PTT
Active low Mic down input
- LCD segment signal
Description
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