EM3587-RTR datasheet(40/59 Pages) SILABS

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EM358x

Rev 1.0

PB4

I/O

Digital I/O

TIM2C4

(see also Pin 24)

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 24)

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

PA0

I/O

Digital I/O

USBDM (where

applicable)

I/O

USB D- signal

Select analog function with GPIO_PACFGL[3:0]

TIM2C1

(see also Pin 30)

Timer 2 channel 1 output

Disable remap with TIM2_OR[4]

Enable timer output in TIM2_CCER

Select alternate output function with GPIO_PACFGL[3:0]

TIM2C1

(see also Pin 30)

Timer 2 channel 1 input

Disable remap with TIM2_OR[4]

SC2MOSI

SPI master data out of Serial Controller 2

Either disable timer output in TIM2_CCER,



or enable remap with TIM2_OR[4]

Enable master with SC2_SPICFG[4]

Select SPI with SC2_MODE

Select alternate output function with GPIO_PACFGL[3:0]

SC2MOSI

SPI slave data in of Serial Controller 2

Enable slave with SC2_SPICFG[4]

Select SPI with SC2_MODE

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.

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