GNSS Module Series
LC76G_Series_EVB_User_Guide 15 / 33
Test Point No. Test Point Label Test Point Function I/O
Description
23
16
U103: Pin 16
DIO I2C_SDA: I2C serial data
24
14
U103: Pin 14
PO
VDD_RF: Power supply for
external RF components
25
12
GND
-
Ground
26
10
GND
-
Ground
27
8
U103: Pin 8
PI
VCC: Main power supply
28
6
U103: Pin 6
PI
V_BCKP: Backup power supply
for backup domain of module
29
4
U103: Pin 4
DO
1PPS: 1 pulse per second
30
PIN2
U103: Pin 2
DO
TXD: Transmits data
1. Test points of J402 are arranged clockwise, and their serial numbers are shown in
2. A J402 test point refers to the module’s corresponding function. For detailed descriptions, see
document [1] hardware design
.
NOTE
