Hytera MD78X - Page 50

UHF1 (400
–
470 MHz)
Interface Definition
43
Pin No. Name Description
1 GND Grounding pin
2 VCI 2.5–3.3 V adjustable port
3 VCI 2.5–3.3 V adjustable port
4 IOVCC 1.65–3.3 V adjustable I/O port
5 FLM Synchronization signal control port
6 CS Chip select signal
7 RS Register select
8 WR Write signal
9 RD Read signal
10 DB0
Data bus
11 DB1
12 DB2
13 DB3
14 DB4
15 DB5
16 DB6
17 DB7
18 DB8
19 DB9
20 DB10
21 DB11
22 DB12
23 DB13
24 DB14
25 DB15