unicore UM960L, Инструкция по установке и эксплуатации

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6 Hardware UC-00-M48 EN R1.1
No. Pin I/O Description
5 BIF —
Built-in function; recommended to add a
through-hole testing point and a 10 kΩ pull-up
resistor; cannot connect ground or power
supply or peripheral I/O, but can be floating.
6 TXD2 O UART2 output
7 RXD2 I UART2 input
8 RESET_N I
System reset; active Low. The active time should
be no less than 5 ms.
9 VCC_RF 1 O External LNA power supply
10 GND — Ground
11 ANT_IN I GNSS antenna signal input
12 GND — Ground
13 GND — Ground
14 RSV —
Reserved; cannot connect ground or power
supply or an output interface
15 RXD3 I UART3 input
16 TXD3 O UART3 output
17 BIF —
Built-in function; recommended to add a
through-hole testing point and a 10 kΩ pull-up
resistor; cannot connect ground or power
supply or peripheral I/O, but can be floating.
18 SDA I/O I 2 C data
19 SCL I/O I 2 C clock
20 TXD1 O UART1 output
21 RXD1 I UART1 input
1
Not recommended to take VCC_RF as ANT_BIAS to feed the antenna. See section 3.2 for more
details.