EM3581-RTR datasheet(48/59 Pages) SILABS

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EM358x

Rev 1.0

PB7

I/O

High

current

Digital I/O

ADC2

Analog

ADC Input 2

Enable analog function with GPIO_PBCFGH[15:12]

IRQC1

Default external interrupt source C.

TIM1C2

Timer 1 channel 2 output

Enable timer output in TIM1_CCER

Select alternate output function with GPIO_PBCFGH[15:12]

TIM1C2

Timer 1 channel 2 input

Cannot be remapped

PB6

I/O

High

current

Digital I/O

ADC1

Analog

ADC Input 1

Enable analog function with GPIO_PBCFGH[11:8]

IRQB

External interrupt source B

TIM1C1

Timer 1 channel 1 output

Enable timer output in TIM1_CCER

Select alternate output function with GPIO_PBCFGH[11:8]

TIM1C1

Timer 1 channel 1 input

Cannot be remapped

PB5

I/O

Digital I/O

ADC0

Analog

ADC Input 0

Enable analog function with GPIO_PBCFGH[7:4]

TIM2CLK

Timer 2 external clock input

TIM1MSK

Timer 1 external clock mask input

VDD_CORE

Power

1.25 V digital core supply decoupling

VDD_PRE

Power

1.8 V prescaler supply

VDD_SYNTH

Power

1.8 V synthesizer supply

OSCB

I/O

24 MHz crystal oscillator or left open when using external clock input on

OSCA

Table 6.1. EM358x Pin Descriptions (Continued)

Pin #

Signal

Direction

Description

Note:

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

GPIO_IRQDSEL registers.

EM3581-RTR 数据表(PDF) 48 Page - Silicon Laboratories

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EM3581-RTR 数据表(PDF) 48 Page - Silicon Laboratories

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