EM357-RTR datasheet(216/241 Pages) SILABS

216 / 241 page

216

Rev 1.3

PA2

I/O

Digital I/O

TIM2C4

(see also Pin 20)

Timer 2 channel 4 output

Disable remap with TIM2_OR[7]

Enable timer output in TIM2_CCER

Select alternate output function with GPIO_PACFGL[11:8]

TIM2C4

(see also Pin 20)

Timer 2 channel 4 input

Disable remap with TIM2_OR[7]

SC2SCL

I/O

TWI clock of Serial Controller 2

Either disable timer output in TIM2_CCER,



or enable remap with TIM2_OR[7]

Select TWI with SC2_MODE

Select alternate open-drain output function with GPIO_PACFGL[11:8]

SC2SCLK

SPI master clock of Serial Controller 2

Either disable timer output in TIM2_CCER,



or enable remap with TIM2_OR[7]

Enable master with SC2_SPICFG[4]

Select SPI with SC2_MODE

Select alternate output function with GPIO_PACFGL[11:8]

SC2SCLK

SPI slave clock of Serial Controller 2

Enable slave with SC2_SPICFG[4]

Select SPI with SC2_MODE

PA3

I/O

Digital I/O

SC2nSSEL

SPI slave select of Serial Controller 2

Enable slave with SC2_SPICFG[4]

Select SPI with SC2_MODE

TRACECLK

(see also Pin 36)

Synchronous CPU trace clock

Either disable timer output in TIM2_CCER,



or enable remap with TIM2_OR[5]

Enable trace interface in ARM core

Select alternate output function with GPIO_PACFGL[15:12]

TIM2C2

(see also Pin 31)

Timer 2 channel 2 output

Disable remap with TIM2_OR[5]

Enable timer output in TIM2_CCER

Select alternate output function with GPIO_PACFGL[15:12]

TIM2C2

(see also Pin 31)

Timer 2 channel 2 input

Disable remap with TIM2_OR[5]

Table 19.1. EM35x Pin Descriptions (Continued)

Pin #

Signal

Direction

Description

EM357-RTR 데이터시트(PDF) 216 Page - Silicon Laboratories

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