User's Manual

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Silicon Laboratories Finland Oy

Page 10 of 45

SPI signal

Pad

number

Pad type

Description

SPI_MOSI

40

Input, weak internal pull-down

SPI data input

SPI_CS#

37

Input, weak internal pull-up

Chip select, active low

SPI_CLK

38

Input, weak internal pull-down

SPI clock

SPI_MISO

39

Output, weak internal pull-down

SPI data output

Table 7: Terminal Descriptions