GNSS Module Series
LC79D (A) EVB User Guide
LC79D(A)_EVB_User_Guide 12 / 21
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: J104 test points
Table 5: Pin Description of J104
Pin No.
Signal
I/O
Description
1
CTS
DI
Clear to send
2
RTS
DO
Request to send
3
REQ
DO
Data availability indication, used to indicate
whether there is data available for reading
4
RXD
DI
Receive data
5
1PPS
DO
One pulse per second
6
TXD
DO
Transmit data
7
AP_REQ
DI
AP request to send
8
STDBY
DI
Standby mode control
9
RDY
DO
Reserved
10
GND
-
Ground
