Alinco DR-620 - Page 21

Terminal Function of Front CPU
No. Pin Name Function I/O Logic Description
i Vcc
VCC
2 Vref VREF
3 Avss AVSS
4 P44 PTT I Activ low PTT key input
S P43 RE1 I Pulse Dial (rotary encoder) input
e P42 UP I
Activ low
Key input (UP)
l P41 DOWN I
Activ low
Key input (DOWN)
a P40 FUNC I
Activ low
Key input (FUNC)
9 P2l SQL I Activ low Key input (SQL)
1 0 P2 e H/L I Activ low Key input (H/L)
ii P25/TxD RXD1 I Pulse Serial Communication port for Main CPU
i
2 P24/RxD TXD1
O
Pulse Serial Communication port for Main CPU
13 P23 TS/DCS I
Activ low
Key input (TS/DCS)
i4 P22 MHz I
Activ low
Key input (MHz)
iS CNVss CNVSS
ie P21 CALL I
Activ low
Key input (CALL)
1 l P20 BAND I
Activ low
Key input (BAND)
ia RESET RESET
I
Activ low Reset input
i9 Xin XIN I Pulse CPU clock input
2 0 Xout XOUT
O
CPU clock output
2 1 Vss GND
2 2 Pil V/M I Activ low Key input (UP)
23 Pie RED O
Activ high Lighting color ON/OFF (RED)
24 P15 GREEN
O
Activ high
Lighting color ON/OFF (YELLOW)
2 S Pi4 TXLED
O
Activ high TX LED ON/OFF
2 e Pi3 MRLED
O
Activ high MAIN RX LED ON/OFF
2 l Pi2 SRLED
O Activ high
SUB RX LED ON/OFF
2 a P11 DIM1 O
Activ high
Dommer control 1
29 P10 DIM2 O
Activ high
Dimmer control 2
30 POl
31 P06
32 P05 DO I Pulse Data input for LCD driver IC
33 P04 CE O
Activ high
Strobe for LCD driver IC
34 P03 CL O Pulse Clock output for LCD driver IC
35 P02 DI O Pulse Data output for LCD driver IC
36 P01 MUTE
O Activ high
-
3l P00 RE2 I Dial (rotary encoder) input
3a P34/AN4
39 P33/AN3
40 P32/AN2
4i P31/AN1 MVR I A/D MAIN volume voltage input
42 P30/AN0 SVR I A/D SUB volume voltage inpput
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