User's Manual

24
28 VL3
29 VL2
30 VL1
Not connected.
31 SEG12 O
32 SEG11 O
33 SEG10 O
34 SEG9 O
35 SEG8 O
36 SEG7 O
37 SEG6 O
38 SEG5 O
39 SEG4 O
40 SEG3 O
41 SEG2 O
42 SEG1 O
SEG1-SEG12 is LCD SEG control
43 FILT-CTL O CTCSS/CDCSS LPF control
44 PLL-EN O PLL enable
45 PLL-CLK O PLL serial clock
46 PLL-DATA O PLL serial data
47 ST-CTL O VOX side-tone control
48 KEY-OUT2 O
49 KEY-OUT1 O
50 KEY-IN3 I
51 KEY-IN2 I
52 KEY-IN1 I
Keypad signal input output pin
53 EEP-DATA I/O EEPROM serial data
54 EEP-CLK O EEPROM serial clock
55 TXD O RS232 Transmit
56 RXD I RS232 Receive