EM3591-RTR datasheet(39/59 Pages) SILABS

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EM359x

Rev 1.0

VDD_CORE

Power

1.25 V digital core supply decoupling

PA7

I/O

High

current

Digital I/O

Disable REG_EN with GPIO_DBGCFG[4]

TIM1C4

Timer 1 Channel 4 output

Enable timer output with TIM1_CCER

Select alternate output function with GPIO_PACFGH[15:12]

Disable REG_EN with GPIO_DBGCFG[4]

TIM1C4

Timer 1 Channel 4 input

Cannot be remapped

REG_EN

External regulator open drain output

Enabled after reset

PD1

I/O

Digital I/O

SC3MISO

SPI slave data out of Serial Controller 3

Select SPI with SC3_MODE

Select slave with SC3_SPICFG

Select alternate output function with GPIO_PDCFGL[7:4]

SC3MOSI

SPI master data out of Serial Controller 3

Select SPI with SC3_MODE

Select master with SC3_SPICFG

Select alternate output function with GPIO_PDCFGL[7:4]

SC3SDA

I/O

TWI data of Serial Controller 3

Select TWI with SC3_MODE

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

SC3TXD

UART transmit data of Serial Controller 3

Select UART with SC3_MODE

Select alternate output function with GPIO_PDCFGL[7:4]

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.

EM3591-RTR 数据表(PDF) 39 Page - Silicon Laboratories

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EM3591-RTR 数据表(PDF) 39 Page - Silicon Laboratories

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