LE910Cx HW User Guide
1VV0301298 Rev. 33
Page 74 of 128
2021-06-29
Not Subject to NDA
•
1.8V CMOS level
•
Up to 50 MHz clock rate
Note: The LE910Cx module supports Master mode only and cannot
be configured as Slave mode.
PAD
Signal
I/O
Function
Type
Comment
F15
SPI_CLK
O
SPI clock output
1.8V
E15
SPI_MISO
I
SPI data Master
input Slave
output
1.8V
Shared with
RX_AUX
D15
SPI_MOSI
O
SPI data Master
output Slave
input
1.8V
Shared with
TX_AUX
H14
SPI_CS
O
SPI chip-select
output
1.8V
Table 30: SPI Signals
Figure 19: SPI Signal Connectivity
8.5.2.
I2C - Inter-integrated Circuit
The LE910Cx supports an I2C interface on the following pins:
•
B11 - I2C_SCL
•
B10 - I2C_SDA
The I2C can also be used externally by the end customer application.
In addition, SW emulated I2C functionality can be used on GPIO pins 1-10. Any GPIO
(among GPIO 1-10) can be configured as SCL or SDA.
LE910Cx only supports I2C Master Mode.
LE910Cx
(Master)
SPI_CS
SPI_CLK
SPI_MOSI
SPI_MISO
Host (Slave)
SPI_CS
SPI_CLK
SPI_MOSI
SPI_MISO