GNSS Module Series
L89 EVB User Guide
L89_EVB_User_Guide 14 / 26
3.5. Test Points
The following figure illustrates the test points of the EVB.
1
2
3
4
5
6
7
8
9 10
Figure 8: L89 EVB Test Points
Table 6: Pin Description of J106
D305
JAM_IND
DO
High: No signal is interfered when the module works.
Low: Signal is interfered when the module works.
D306
Reserved
DO
Reserved
Pin No.
Signal
I/O
Description
1
GND
-
Ground
2
RESET
DI
System reset
3
1PPS
DO
1 pulse per second
4
TXD
DO
Transmit data
5
RXD
DI
Receive data
6
3.0V
PI
I2C pull up power input
7
SCL
DI
I2C serial clock
8
SDA
IO
I2C serial data
9
3D_FIX
IO
3D-FIX instructions signal
