UNICORECOMM UM980 - Page 14

UC-00-M32 EN R1.1 Hardware 9
No.
Pin
I/O
Description
7
VCC_RF
7
O
External LNA power supply
8
SPIS_CSN
I
Chip select pin for SPI slave
9
SPIS_MOSI
I
Master Out / Slave In. This pin is used to
receive data in slave mode.
10
SPIS_CLK
I
Clock input pin for SPI slave
11
SPIS_MISO
O
Master In / Slave Out. This pin is used to
transmit data in slave mode.
12
GND
—
Ground
13
RSV
—
Reserved
14
GND
—
Ground
15
NC
—
No connection inside
16
NC
—
No connection inside
17
NC
—
No connection inside
18
NC
—
No connection inside
19
PVT_STAT
O
PVT status: active high;
outputs high when positioning and low when
not positioning
20
RTK_STAT
O
RTK status: active high;
outputs high for RTK fixed solution and low
with other positioning status or no
positioning
21
ERR_STAT
O
Error status: active high;
outputs high when failing self-test, and low
when passing self-test
22
RSV
—
Reserved, recommended to be floating
7
Not recommended to take VCC_RF as ANT_BIAS to feed the antenna See section 3.2 for more details.