EM3591-RTR datasheet(41/59 Pages) SILABS

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EM359x

Rev 1.0

PB3

I/O

Digital I/O

TIM2C3

(see also Pin 26)

Timer 2 channel 3 output

Enable remap with TIM2_OR[6]

Enable timer output in TIM2_CCER

Select alternate output function with GPIO_PBCFGL[15:12]

TIM2C3

(see also Pin 26)

Timer 2 channel 3 input

Enable remap with TIM2_OR[6]

SC1nCTS

UART CTS handshake of Serial Controller 1

Enable with SC1_UARTCFG[5]

Select UART with SC1_MODE

SC1SCLK

SPI master clock of Serial Controller 1

Either disable timer output in TIM2_CCER,



or disable remap with TIM2_OR[6]

Enable master with SC1_SPICFG[4]

Select SPI with SC1_MODE

Select alternate output function with GPIO_PBCFGL[15:12]

SC1SCLK

SPI slave clock of Serial Controller 1

Enable slave with SC1_SPICFG[4]

Select SPI with SC1_MODE

PB4

I/O

Digital I/O

TIM2C4

(see also Pin 28)

Timer 2 channel 4 output

Enable remap with TIM2_OR[7]

Enable timer output in TIM2_CCER

Select alternate output function with GPIO_PBCFGH[3:0]

TIM2C4

(see also Pin 28)

Timer 2 channel 4 input

Enable remap with TIM2_OR[7]

SC1nRTS

UART RTS handshake of Serial Controller 1

Either disable timer output in TIM2_CCER,



or disable remap with TIM2_OR[7]

Enable with SC1_UARTCFG[5]

Select UART with SC1_MODE

Select alternate output function with GPIO_PBCFGH[3:0]

SC1nSSEL

SPI slave select of Serial Controller 1

Enable slave with SC1_SPICFG[4]

Select SPI with SC1_MODE

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.

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EM3591-RTR 数据表(PDF) 41 Page - Silicon Laboratories

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