unicore UM982 - SPI Interface Pins; UART Interface Pins; I2 C Interface Pins; VCC Power Pin

UC-00-M31 EN R1.2 Hardware 7
No.
Pin
I/O
Description
ground or leave it floating.
6
SPIS_CSN
I
Chip select pin for SPI slave
7
SPIS_MOSI
I
Master Out / Slave In. This pin is used to receive
data in slave mode.
8
SPIS_CLK
I
Clock input pin for SPI slave
9
SPIS_MISO
O
Master In / Slave Out. This pin is used to transmit
data in slave mode.
10
SPIS_SDRY
O
Interrupt output of SPI slave
11
RSV
—
Reserved, floating
12
RSV
—
Reserved, floating
13
RSV
—
Reserved, floating
14
ERR_STAT
O
Error status: active high;
outputs high when failing self-test, and low when
passing self-test
15
PVT_STAT
O
PVT status: active high;
outputs high when positioning and low when not
positioning
16
RTK_STAT
O
RTK status: active high;
outputs high for RTK fixed solution and low for
other positioning status or no positioning
17
RXD1
I
COM1 input, LVTTL level
18
TXD1
O
COM1 output, LVTTL level
19
RXD2
I
COM2 input, LVTTL level
20
TXD2
O
COM2 output, LVTTL level
21
SCL
I/O
I
2
C clock
22
SDA
I/O
I
2
C data
23
VCC
POWER
Power supply (+3.3 V)