N58 Hardware User Guide
Chapter 5 Application Interfaces
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51
Figure 5-26 SPI reference design
N58 Module
(Master)
MOSI
MISO
CLK
CS
Device
(Slave)
SPI_MISO
SPI_MOSI
SPI_CS_N
SPI_CLK
5.3.6 I2C
Pin Name
Pin No.
I/O
Function
Remarks
I2C_SDA
81
B
I2C data
Connect this pin to VDD_1P8 by using a 1.8 kΩ
pull-up resistor.
I2C_SCL
82
DO
I2C clock
Connect this pin to VDD_1P8 by using a 1.8 kΩ
pull-up resistor.
The N58 module provides one I2C interface. The I2C interface supports only the master mode, the
maximum rate of the interface is 3.4 Mbps, and the interface level is 1.8 V. Figure 5-27 shows the I2C
reference design.
Figure 5-27 I2C reference design
I2C_SCL
N58 module
(Master)
I2C_SDA
SCL
SDA
(Slave)
Device
VDD_1P8
1.8k
Ω
1.8k
Ω