EM3597-RTR datasheet(43/59 Pages) SILABS

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EM359x

Rev 1.0

PA1

I/O

Digital I/O

USBDP (where

applicable)

I/O

USB D+ signal

Select analog function with GPIO_PACFGL[7:4]

TIM2C3

(see also Pin 23)

Timer 2 channel 3 output

Disable remap with TIM2_OR[6]

Enable timer output in TIM2_CCER

Select alternate output function with GPIO_PACFGL[7:4]

TIM2C3

(see also Pin 23)

Timer 2 channel 3 input

Disable remap with TIM2_OR[6]

SC2SDA

I/O

TWI data of Serial Controller 2

Either disable timer output in TIM2_CCER,



or enable remap with TIM2_OR[6]

Select TWI with SC2_MODE

Select alternate open-drain output function with GPIO_PACFGL[7:4]

SC2MISO

SPI slave data out of Serial Controller 2

Either disable timer output in TIM2_CCER,



or enable remap with TIM2_OR[6]

Enable slave with SC2_SPICFG[4]

Select SPI with SC2_MODE

Select alternate output function with GPIO_PACFGL[7:4]

SC2MISO

SPI master data in of Serial Controller 2

Enable slave with SC2_SPICFG[4]

Select SPI with SC2_MODE

VDD_PADS

Power

Pads supply (2.1–3.6 V)

Table 6.1. EM359x Pin Descriptions (Continued)

Pin #

Signal

Direction

Description

Note:

IRQC and IRQD external interrupts can be mapped to any digital I/O pin using the GPIO_IRQCSEL and

GPIO_IRQDSEL registers.

EM3597-RTR 数据表(PDF) 43 Page - Silicon Laboratories

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