6
No.
Pin
I/O
Description
11
RSV
-
RSV
12
RSV
-
RSV
13
RSV
-
RSV
14
GND
-
Ground
15
SPEED
I
odometer- pulse
16
FWR
I
odometer- direction
17
V_BACKUP
I
When the main power supply of the
module VCC is cut off, V_BCKP supplies
power to RTC and SRAM. Level
requirements: 2.0~ 3.6 V, and the working
current is about 10uA. Can be suspended
without using the hot start function
18
GND
-
Ground
19
PVT STAT
O
PVT positioning indicator, active-high. The
module outputs high level when positioning
and outputs low level when no positioning
is proceeded.
20
GPIO2
I/O
Common IO
21
RSV
-
RSV
22
FRESET_N
I
Reset to factory default (clear all user
settings), LVTTL active-low, press longer
than 5 seconds
23
ERR_STAT
O
Abnormal indicator, active-high. When the
RTK solution is fixed, it outputs high level,
alternatively outputs low level when the
module completes the self-diagnosis.
24
RTK_STAT
O
RTK positioning indicator, active-high.
When the self-diagnosis of the module
system fails, it outputs high level,
alternatively outputs low level when it’s in
other positioning states or no positioning is
proceeded.
25
GND
-
Ground
26
SPI_MISO
I
SPI data input
27
SPI_MOSI
O
SPI data output
28
SPI_CLK
O
SPI clock
29
SPI_SS0
O
SPI chip select 0
30
SPI_SS1
O
SPI chip select 1
31
3.3V_VCC
Power Power Supply (+3.3V)
32
3.3V_VCC
Power Power Supply (+3.3V)
33
GND
-
Ground
34
GND
-
Ground
35
TXD1
I/O
COM 1 transmit
36
RXD1
I
COM 1 receive
